The 100 - tropes 

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pronounced "The Hundred" is an American post-apocalyptic drama series airing on The CW. It is based on the book series of the same name by Kass Morgan. The series is set in 2149, 97 years after a nuclear apocalypse devastated the surface of Earth with the only survivors being approximately 400 inhabitants of 12 national space stations that were in orbit at the time and follows a group of Delinquents, who have been sent down to Earth to see if it is survivable and also follows the survivors left behind on the Ark, who also come to Earth at the end of the first season.

The series premiered on The CW in the United States on March 19, 2014, attracting 2.73 million viewers on the original airing; and its third season concluded on May 19, 2016. The series was renewed for a fourth season for 2017 with a total of 13 episodes.

The series is only loosely based on the first novel in the hundred series. Some characters on the series are original characters and do not appear in the books. A few also have their personalities switched or shared. The TV series is also considered to be ahead of the book series in events. Many of the events that happen in the TV show may not happen in the books.

The first 3 seasons can currently be streamed on Netflix and season 4 airs on Wednesdays at 9PM/8PMct starting February 1, 2017 on The CW and can also be streamed on The CW App.

When their radios do not work, the 100 launch flares in the hopes that the Ark will see them and realize that they are alive. Unfortunately the flares land in a Grounder village and burn it down, which the Grounders take as an act of war.

In "Thirteen", Titus planned to kill Clarke and frame Murphy for the act, but wound up shooting Lexa instead.

The Grounders do not appear to have any assigned gender roles, and women are trained as warriors and leaders alongside the men.

Anya is the first Grounder leader encountered by the 100, she is a leader of the Woods Clan and is the first recurring antagonist of the series.

Indra is the commander of the Woods Clan, who is hostile to the Ark but becomes a valued ally as they work together.

Lexa is the Grounder Commander, who heads the Twelve Clans.

Octavia is mentored by Indra in the second season, learning Grounder ways and how to fight. She becomes a capable warrior as a result of this, going on to out-think and kill Luna.

Major Byrne was was a member of the Guard on the Ark, and becomes one of the combat/security leaders after the Ark returns to Earth. When the Ark begins to form an alliance with the Grounders, she is involved as a military advisor and Clarke\'s bodyguard. However, she\'s no match for a mutated gorilla.

Clarke who had a major fight with Anya in season 2 and won. In season 3, she killed a panther with just a knife.

Raven who mostly fixes and makes the weapons and is capable of using them.

Abby is capable with firearms and acts as a leader. She is also a doctor and because of this she hesitates to take lives, unless it is necessary.

Action Politician: Both Clarke and Lexa act as leaders of their people and are pretty much always on the front-lines where the action is.

Action Survivor: None of the 100 know anything about Earth and very few know anything about combat. Those who survive do so by slowly learning how to fight.

Actually, That\'s My Assistant: When Kane tries make contact with the Grounder Commander in order to negotiate peace between them and the Ark survivors, the large warrior Gustus locks him in a cage with Jaha and a Grounder slave woman. Jaha and Kane debate over how they can convince Gustus that their desire for peace is genuine, unaware that the slave woman in the cell with them is actually Lexa, the true Grounder Commander, who was scoping them out to see if they really did want peace. Gustus was actually her trusted lieutenant.

Adaptation Expansion: The books focus on little else besides the 100; the show does more worldbuilding by lending focus to the adults on the Ark and the Mountain Men, and goes deeper into Grounder culture.

From "The Colony" in the books to "The Ark" on the show.

People who survived the nuclear winter are called "Earthborn" in the books while the show calls them "Grounders."

Adapted Out: Glass and her storyline are not present in the series, which focuses on Wells, Clarke, Bellamy (the other 3 POVs) and the rest of the 100. Conversely, a bunch of Canon Foreigners were created. Other characters to be cut from the novels include Thalia, Luke, Lilly, Asher, and Graham.

Advancing Wall of Doom: The main threat of season 4, the Praimfaya wave. The nuclear reactors in Europe are finally breaking down, releasing huge amounts of radiation, which are estimated to reach the main setting in mere months. Everyone scrambles to find some way to survive it, as this is a force that simply cannot be beaten. The main solution turns out to be avoiding it by going down to an underground bunker and wait for five years, while another group, cut off from the others, manages to go over it by heading up to the remains of the Ark.

The Sky people; common names like Jasper, Monty, and Nathan exist alongside presently used but fairly uncommon names like Bellamy, Thelonius, and Sterling, as well as downright weird ones like Atom.

The Grounders lean towards the more fantastical end of the naming scale. They have common given names like Anya, Tristan, and Luna, odd variants of common names like Lexa, Gustus, and Nyko, words that are not commonly used as names like Lincoln, Echo, and Roan, and weird ones like Emori, Denae, and Semet.

97 years after a nuclear war that spanned the globe. The Ark is a conglomeration of twelve space stations that were in orbit around Earth at the time, and to the knowledge of its inhabitants they were the only survivors. However, there are large populations of humans still on the planet which have developed their own societies after the destruction.

Happens again after the Praimfaya wave devastates most of the planet and kills most of the remaining life. Clarke and Madi wander this environment for six years.

Alien Blood: Some of the Grounders have pitch black blood, after which they are called

. It marks them as being eligible to become the next Commander.

All Crimes Are Equal: On The Ark, all crimes are punishable by death unless you are under eighteen years of age. Juveniles are held in solitary confinement until their eighteenth birthday, whereupon a trial is held to determine if they should be executed or allowed to re-enter Ark society. This is for population control purposes, as there is limited life support on The Ark.

Alliterative Name: A recurring theme with Callie Cartwig, Bellamy Blake, Jasper Jordan and Raven Reyes.

Almost Dead Guy: Gina has been stabbed by a Grounder who activates a self-destruct in Mount Weather, but manages to tell Raven to get the deactivation code so that she can turn off the self-destruct. Though Raven does get the code, Gina has bled out in the intervening seconds and died before she could deactivate the self-destruct.

Though the Grounders are revealed to be much more complicated than as first appears, both they and the 100 regard the Reapers as unreachable murderous monsters. The Reapers are ultimately revealed to be Grounders harvested by the Mountain Men, turned feral by way of a Fantastic Drug.

The show generally deconstructs and subverts this trope as even the Mountain Men are shown to be complicated and have reasons for their "evil" actions and the Grounders, Sky People, and Mountain Men all have shades of grey and the desire to do what is best for their people.

after Bellamy takes the reins and declares that they can do "whatever [they] want, whenever [they] want." It takes Wells\' and Charlotte\'s deaths and Murphy\'s exile to make them realize they need laws.

And Starring: "With Isaiah Washington And Henry Ian Cusick"

Anyone Can Die: The series has killed off several supporting/minor characters and so far one main character per season and also isn\'t shy about high body counts even including children.

Season 1: Wells, Charlotte, Atom, Myles, Diana Sydney, and Shumway.

Season 2: Anya, Finn, Sterling, Fox, Maya, Dante, Cage, and Tsing.

Season 3: Lexa, Lincoln, Monroe, Sinclair, Pike, Hannah, Titus, Nia, Ontari, Gina, and Shay.

Season 4: Nyko, Ilian, Roan, Luna, Riley, Jasper, David Miller. Not to mention the millions who die in Praimfaya.

Apocalypse How: Caused by a nuclear armageddon. The effect was "Planetary/Societal Collapse" for Earth and "Societal Disruption" for the Ark.

Arc Number: 100. It\'s the number of delinquents originally planned to be sent down to earth, the number of slots left in Arkadia in season 4, and the number of representatives each clan gets to send to the bunker.

The Ark: The last bastion for the survivors of the nuclear winter. At least that\'s what they thought.

In the first season, the realpolitik of the Ark and the struggles of its higher-ups was a secondary storyline to that of the titular 100 (technically 102, including Bellamy and Raven) surviving on Earth. The third season focuses more on exclusively on politics, worldbuilding, and war engineered by the Ark and Grounder leaders, with the surviving members of the 102 (except for Clarke, Bellamy, Octavia, Raven, Jasper, and Monty) getting put Out of Focus.

It becomes somewhat relevant again in season 4, with Arkadia only having enough space for 100 survivors. However, it becomes a moot point when Arkadia is blown up. Several episodes later, Octavia declares that each clan will get 100 spots in the bunker.

Artificial Intelligence: The Stinger for the end of the second season revealed that an A.I was waiting for Jaha with the nuke unwittingly when he landed. The A.I is revealed to be named A.L.I.E and she is responsible for the nuclear holocaust that destroyed the earth 97 years ago.

They are unable to metabolize the radiation outside their mountain home. They break out in instantaneous lesions and bleeding wounds when exposed to radiation, which are treated with blood transfusions from Grounders or members of the Ark. The blood transfusions not only prevent further damage, but heal what has already occurred. They then move on to bone marrow transplants from Ark members to cure their radiation weakness.

Their bone marrow plot seems to be "take someone\'s bone marrow and stick it into anyone else." This is hardly the case in real life. Donor and recipient have to be matched, and with only 40-something donors for 400ish recipients, you\'d be lucky to find even one match for people who are not directly related.

Artistic License � Engineering: In the second season, Jaha descends to the ground using a nuclear missile. We can assume that it wasn\'t specifically converted into a shuttle because the warhead is still inside, yet it has a braking parachute and enough internal room for Jaha to climb aboard.

Ass in Ambassador: In season three, the Ice Nation has become belligerent and intends to break the Grounder Coalition; their ambassador\'s are condescending and hostile to the other Grounder tribes and the Sky People. One of them gets himself thrown off a balcony for his arrogance, but that has no tempering effect on the others.

Though the Grounders believe that their Commanders are chosen through Born-Again Immortality and are selected by the spirits of previous Commanders, they need to prove that they are worthy of

that power after they are in the position. Gustus, Lexa\'s bodyguard, fears that if she shows any weakness she will be deposed and killed by her own people.

This becomes a major plot point at the end of season 4 with regards about what to do with a bunker that can support 1200 people now that the approaching Praimfaya wave is unavoidable and it is the only hope for humanity\'s survival. In order to avoid a full-on war between every clan, Roan proposes that a Conclave should be held with a single Champion selected from each clan and that the winner will be allowed to utilize the bunker however they see fit. Octavia ends up winning the Conclave and, after declaring that all clans will be allowed to live in it together, is pronounced the leader of Wonkru.

Back from the Dead: In the third season, when a person with the A.L.I.E chip or the Flame/A.L.I.E 2.0 chip dies, their minds are uploaded into a main frame and are technically still alive in a virtual world and they become part of the artificial intelligence. This makes it so that Lexa is able to appear in the finale after her death in the real world to help Clarke in the City Of Light.

Other characters however stay dead and if they appear after it is either as an hallucination or they really didn\'t die at all.

Raven is very self-confident when it comes to her engineering skills. When Bellamy points out that the bridge she intends to destroy has survived nuclear war and one hundred years of weather, she is undaunted.

In the second season, despite the resumption of political rule by the Ark survivors, Clarke retains her power from her influence with the Grounders.

In the third season, when Lexa is prodded as to who she will select to be her champion in her trial of combat:

Lexa who is introduced as the Commander of all the grounders and just so happens to be a lesbian.

Clarke who was already badass is revealed to be a Badass Bisexual in season 2.

Beard of Sorrow: Jasper starts season three in a depressed funk with a goatee, in stark contrast from the preceding seasons where his clean-shaven face emphasized his innocence.

Beautiful Dreamer: When Lexa has fallen asleep on her couch in the opening of "Bitter Harvest", Clarke sits across from her and sketches a portrait of her sleeping.

Beauty Is Never Tarnished: Averted - When characters get into fights they receive large lacerations, bruises and other damage that cover their faces. They also get muddy, greasy, and generally disgusting over the course of living and fighting in a forest. Whenever anyone gets wounded the effects remain for the next several episodes.

Beneath Notice: At the start of season three, Clarke is hiding in the wilderness and avoiding both Arkadia and the Grounder Coalition. Since she is living as a normal Grounder, speaking Trigedasleng and hunting for her own food, occasionally exchanging animal meat and skin for goods at a trading post, nobody thinks that she might be the person everybody is looking for. Roan sees through the disguise and captures her regardless.

Better the Devil You Know: Chancellor Jaha is perfectly willing to accept the Ark\'s code of laws which require the execution of all criminals over age eighteen, even those who have committed minor crimes. That said, Abigail, whose husband was executed under Jaha\'s administration because he knew too much, says she prefers having Jaha in power over Kane and even risks being executed herself to keep him alive.

Big Brother Instinct: Bellamy and Octavia\'s relationship in spades. Bellamy\'s one redeeming character trait before Character Development is his care and protection towards Octavia (and even then, he was

protective). His protection of Charlotte is also suggested to be due to his big brother instinct.

Biological Weapons Solve Everything: The Grounders send Murphy back to the 100 after infecting him with a virus to leave them all feverish and weak when they invade in the morning. It doesn\'t quite work, but only through quick thinking on the 100\'s part.

Bi the Way: Clarke is initially attracted to Finn, one of the boys sent down with her from the Ark, but begins to grow close to Lexa, the Grounder Commander, during the second season which leads to her returning her kiss. Season 3 really confirms this when she has a one night stand with a female grounder in the beginning of the season.

The season 2 finale is more a Downer Ending, see below. But it is also bittersweet has Clarke and Bellamy do accomplish the goal of saving their people from Mount Weather.

The season 3 finale. The City of Light is destroyed and people reunite with their loved ones, but Clarke has to finally say goodbye to Lexa and A.L.I.E. reveals to her that radiation from nuclear plant meltdowns is going destroy the earth again during an estimate six month process, but Clarke is confident that they will find a way to survive it, like they have done before.

Black and Gray Morality: To the point that "there are no good guys" is frequently echoed by the characters.

The Ark enforced draconian laws which execute offenders for even minor offenses, but it is made clear that this is viewed as a necessity to preserve resources as long as possible.

The 100 commit numerous acts of war against the Grounders, initially through ignorance, but later decide that the best way to deal with the situation is with increased violence, particularly by killing off Grounders by the hundreds using bombs and rocket fuel. They are just trying to survive, though.

The Grounders have a warrior culture that is quick to bloodshed and endorses grueling torture as execution, even from characters that are portrayed as especially "good" or honorable. This is portrayed as just the way they have learned to survive after a literal Apocalypse.

The Mountain Men engage in sadistic medical experiments upon the innocent and will not even discuss potential alternatives, not hesitating even when a peaceful solution is literally shouted into their faces. This also doubles as Gray and Gray Morality because the atrocities are carried out because they are genuinely the only way for them to survive - the Mountain Men have no tolerance for the surface radiation on the earth, and the only treatment is derived from the blood of kidnapped grounders. Later, they find that the people of the Ark can potentially cure them completely, but only with their bone marrow - leading them to attempt to kill dozens of teenagers in an attempt to protect themselves from radiation.

Played straight with the conflict with Nia the Ice Nation Queen because her actions were just so she can gain more power by her hunting for Clarke because she believed that if she kills her she will gain power from all the people she has killed and her organizing the bombing of Mount Weather that kills several innocent people just so she can make a play for Lexa\'s throne. Also with Ontari who also seeks power and even murdered children in their sleep to get it.

Pike and the people of Farm Station adopt an excessively aggressive stance toward the Grounders because they landed in the midst of Azgeda, a particularly brutal Grounder clan, and have experienced nothing but atrocities at the hands of Grounders. However, this leads to Pike and the rest of the Ark people committing a number of unprovoked atrocities against their own Grounder allies.

Clark herself walks headlong into this trope several times; first when she chooses to slaughter the entirety of Mount Weather - including allies and children - to save her people from being harvested for their bone marrow, then when she forcibly harvests bone marrow from Luna and threatens to test it on Emori against her will out of a last-ditch effort to save everybody from radiation and again when she locks all of the Grounders, and some of her own people, out of the Second Dawn bunker as Praimfaya is approaching because she genuinely believes it will preserve the human race.

Blood from Every Orifice: The virus the Grounders send the 100 has people bleeding from the eyes, mouth, and nose.

Bloody Horror: After discovering Clarke\'s plan to kill her, Nia has Ontari cut her own hand and cover Clarke\'s face with her blood. Clarke is still covered in her blood in the following scene, shocked by the event and by the

In season three we are introduced to A.L.I.E., an artificial intelligence who Jaha has aligned with, shepherding the citizens of Arkadia to the "City of Light," a rumored promised land for all survivors, which amounts to a device that literally

hardwires a person\'s brain into feeling absolutely no pain, physical or otherwise,

wiping entire sections of memory and essentially turning people into drones for her. As an artificial intelligence, she has no human emotions or basically a human understanding about right and wrong and is just following her programing which is to "make life better for humanity" and she takes drastic measures to accomplish this including "wiping out most of humanity to prevent a potential overpopulation problem". Then it is later revealed that her purpose for the City Of Light was to "save humanity" from a coming nuclear meltdown that will irradiate the ground over a six month period and taking away pain was an attempt to give people a happy and perfect life and after the end came, their minds would have lived on in the city after their bodies die preventing the extinction of humanity, but as a machine she couldn\'t understand what exactly was wrong with the way she was accomplishing this and with taking away free will.

The Grounder themselves have shades of this with their traditions and their way of doing things. When you consider how long they have lived with their beliefs and because of this they see no reason to change the way they do things.

Body-Count Competition: Grounders keep track of their kills through scars/tattoos on their body, often bragging about them. Niylah observes in surprise that Clarke does not have any tally marks on her back, but Clarke responds that there is not enough room.

Book Ends: Clarke starts and ends the first season alone, locked in an empty room with a painting of the night sky.

Or at least the Tree People tribe. believe this is what happens to their Commanders: when they die their spirits choose the next Commander and are reborn. "Thirteen" reveals that this works using the A.L.I.E. 2.0 chip which is implanted in each Commander\'s brainstem and passed on from one Commander to the next.

Both Sides Have a Point: This is the basis for the conflict between the Grounders and the Sky People beginning with the 100 as both sides have good reasons to distrust and dislike the other side and both sides are guilty of committing terrible acts against the other both intentionally and unintentionally.

Boxed Crook: All 100 of the juveniles sent to Earth. If they succeed in their mission to Earth (read: survive, thus proving the habitability of the planet), then they will be pardoned for their crimes.

Brains Evil, Brawn Good: While the Grounders are the antagonists throughout much of the series, their conflicts with the Sky People come as much from mutual misunderstandings as innate hostility. Meanwhile, the high-tech Mountain Men are willing to perform horrendous experiments and murder teenagers so that they themselves can go outside.

Brainwashed and Crazy: The Reapers, who are Grounders forcibly given a drug to turn them feral.

Bury Your Gays: The series follows the Anyone Can Die trope and has killed off several characters, but also only had 5 named LGBT characters so far with a sixth (Costia) being a Posthumous Character that is only mentioned.

Lexa, a lesbian, died after having sex with Clarke for the first time. She returns in the finale as an A.I. and meets a more ambiguous fate, but she is still physically dead.

Zoe Monroe who dies from exhaling a poisonous gas, but she is only stated to be LGBT by the actress and it was never stated on-screen.

The four LGBT characters that are currently still alive are Clarke, Brian, Miller, and Niylah as they all survived the events of the fourth season.

But What About the Astronauts?: The entire surviving human population is descended from the astronauts who were living on space stations at the time of the nuclear war...or so they thought. Turns out Earth is a bit more populated.

Cannibalism Superpower: The Grounders believe that if you kill someone you absorb their power. This is the main reason why there is a price on Clarke\'s head at the start of season three; as Wanheda, the Commander of Death, absorbing her strength would change the balance of power amongst the Grounders.

Canon Foreigner: The rest of the 100 that aren\'t Wells, Clarke, Octavia, and Bellamy were not identified by name in the book, let alone given personalities.

A running theme of the series is that the job of "leader" is not an easy one: Sometimes you have to do things that go against everything you stand for in order to protect your people. Jaha had to execute people on The Ark just to ensure Population Control and conserve dwindling resources, which clearly took a toll on him. Kane, a Well-Intentioned Extremist, had to deal with the guilt of knowing that the people he had killed didn\'t need to die. Clarke, The Medic and an All-Loving Hero, could not handle the strain of being forced to kill in defense of The 100 and left Camp Jaha for parts unknown because of it.

In season three the concept gets an explicit discussion between Clarke and Lexa when they both wonder if, someday, they might not be able to lead their own individual lives without needing to worry about the needs of their people as well.

Challenging the Chief: There is a variation of the trope in season three; Nia of the Ice Nation challenges Lexa\'s position as the Grounder Commander and selects her son to fight Lexa in a Trial by Combat. However, neither Nia nor Roan can become the new Commander if Lexa is defeated, the title will instead descend onto one of the Nightbloods. Nia hopes that Ontari, an Ice Nation Nightblood, will become the new Commander.

The Champion: Deconstructing the concept of the Champion is a recurring theme throughout the series, as Champions often perform morally ambiguous or directly-amoral actions for the protection of the one being championed. In each instance, the one being championed resents having the responsibility being placed on them for the actions of the Champion, or opposes the Champion\'s actions directly. Every Championed pair either learns to leave that dynamic behind, or is destroyed by it.

Clarke goes from a naive All-Loving Hero into a Pragmatic Hero willing to do morally ambiguous things to survive.

Bellamy starts as a selfish anarchist whose one redeeming trait is his care for Octavia, but grows into a dependable leader who genuinely cares about the others.

Finn begins the series as a charming, devil-may-care rebel but becomes The Conscience of the group, before descending into obsession in season two.

Octavia is impulsive, spontaneous, and rebellious, but matures considerably into someone willing to put her life on the line for those she loves.

Kane\'s initial characterization focuses on his willingness to do whatever pragmatic action was required in order to safeguard the Ark, but he gradually learns that a more caring approach can have even more beneficial results.

Jasper is awkward and dorky at the beginning, but is forced to grow up considerably in season two after becoming the

leader of the 47 survivors in the Mountain. The events of the second season finale were especially hard on him. The third and fourth seasons continue following his downward spiral due to the copious character deaths in the series.

Raven\'s character development focuses on how she starts to depend less on Finn and more on herself.

Murphy starts out as a sadistic bully, is banished for it, and returns from his exile as a violent sociopath. But throughout season two he learns to appreciate the help of others and skills he can offer them in turn, and by the events of the third and fourth seasons, he gradually becomes a mostly trusted main character - albeit a somewhat amoral one.

After the 100 are joined by other members from the Ark, they are absorbed back into the official political structure headed by the Chancellor. Clarke, however, retains a position of power due to her history and influence with the Grounders. It culminates in a standoff in season two, where she speaks the line "You might be the Chancellor, but I\'m in charge". In season three, her reputation as Wanheda, "The Commander of Death", continues to give her elevated standing with the Grounders and the Ark.

Season two introduces the the mysterious figure of "The Commander", who rules over all the Grounders. Though it is initially implied to be the older Gustus, it is actually Lexa, a teenager who has already been in command for years.

By the end of season 4 Octavia ends up becoming the leader of Wonkru who, other then Bellamy\'s group that made it back to The Arc, and Clarke who managed to survive the Praimfaya wave with a young Nightblood named Madi, are essentially the last remnants of humanity (as far as they know anyway).

The 100 torture Lincoln when they are trying to find the cure for a poison. He refuses to break under the direct pain, but gives up the cure when he sees Octavia infect herself in front of him.

Murphy gets captured and tortured by grounders on no less than three separate occasions.

Lexa relates to Clarke a story about the death of her girlfriend in the backstory, who was kidnapped and tortured by a rival clan who thought she knew Lexa\'s secrets.

The Grounders have a tradition of subjecting criminals and their enemies to this when they execute them and for those who are guilty of doing mass killings they make them feel pain for each life they took which is shown to be by cutting them, but as stated by Lincoln they also will burn and dismember them also but the victims usually die before the torture gets that far. This was almost the fate for Finn because of when he massacred 18 villagers if Clarke didn\'t mercy kill him.

With only four months left of life support for the Ark\'s current population, the option is quickly raised to "reduce" the population to buy time to repair it. it is determined that three hundred people need to be removed in order for the remainder to have sufficient oxygen to survive. The original plan was for there to be an "accident" in crew quarters, but when the general population learned of the danger, three hundred people volunteered so that their families could live.

The Ark only has a single dropship ready to return to Earth, and it can only hold 700 people. The Ark\'s total population is over 2,000; who gets to go? The question is rendered moot when the dropship is stolen after a failed

Comes up again in Season 4, where there are increasingly limited slots to survive the Advancing Wall of Doom, and Clarke has to make a list of who can stay in Arkadia.

Conlang: Trigedasleng, the other language spoken by the Grounders, which seems to be at least partially based on English. The creator of the language says that it is derived from English, specifically from codes used by survivors to identify if someone was friend or foe. If you understood the words you were presumably a member of the group; it then developed into a language of its own with distinct rules.

The conflict between the Grounders and The 100 because the whole thing got started because of mutual misunderstandings and it is later shown that the Grounders could been reasoned with from the start when Anya agreed to meet with Clarke to negotiate peace, but the reasons the negotiations fail is that the 100 have unknowingly and accidentally burned down one of their villages when they shot up the flares to contact the Ark which made the grounders start to believe that the 100 are invaders who want to wipe them out and Jasper who was with Bellamy and others to secretly back up Clarke if something went wrong shoots at the grounders because he thought that Grounder bodyguards who were also secretly their with the same goal but to protect Anya, were planning to attack Clarke and that the negotiation was really a trap and this makes the conflict worse. Main point is that it is shown if one or both sides tried to talk to each other earlier the whole conflict possibly could have been avoided.

When Cage is ordering the Ark prisoners killed for their blood and bone marrow, Kane tells him that this is not necessary. When Cage ignores him, Kane screams how they can

bone marrow and that there is no need to continue the slaughter. This lampshades that if Cage wasn\'t in such a hurry resulting in forced experimentation on the 100 and actually tried to explain the situation with his people to Clarke or Kane, they could have negotiated a way of getting bone marrow without killing and the whole conflict would have been prevented.

In "Thirteen", Titus accidentally shot Lexa while attempting to kill Clarke. Horrified at his actions, he helped carry her to a bed for treatment and cradled her afterwards.

Luna cried over the body of her chipped lieutenant and apparent lover, whom she was forced to kill.

Crapsack World: The Ark is barely maintaining long-term life support, to the point where population control is in effect, adult criminals are executed regardless of the severity of the crime, and in times of emergency people are culled to reduce the load on the systems. Earth, while habitable, is a dangerous place even before the 100 discover that it is already inhabited by people who regard them as invaders. Survival — for those who manage to survive — often comes at the cost of great personal sacrifice and/or committing horrible acts against other people when their attempts to survive come into conflict with yours.

Cruel Mercy: When Lexa holds Emerson prisoner, she offers Clarke the final decision on his fate: Death or banishment. Emerson taunts her over the situation, reveling in the fact that though he will die, Clarke will have to live with her demons haunting her for years. Clarke decides to spare his life in order to help break the Cycle of Revenge which is threatening to lead to all-out war between Arkadia and the Grounders, but she also makes it clear that she knows this is worse for Emerson since now

has to live with his demons for the rest of his life. "May you live forever".—Clarke to Emerson

This ends up becoming a deconstruction of the trope when he comes back later in the season and almost kills her and all her friends as part of his revenge for what Clarke did to his family and his people. Clarke ends up admitting that she should have killed him when she had the chance because of this.

Culture Clash: A large part of the conflict between Grounders and Sky People involves this. This is mostly because of how violent and disturbing most of Grounder culture is compared to the way the Sky People/Ark people do things.

Bellamy\'s rescue team vs. Grounders. A group of juveniles up against hardened warriors born and raised in a hostile and lethal forest on the Grounders own territory. The rescue party is slaughtered almost to a man.

Octavia tries to go up against a seasoned Grounder warrior in "Survival of the Fittest." The end result is...not pretty. Fortunately for Octavia, her determination and spirit merited her training to improve her skills.

The source of the continuing conflict between the Grounders and the Sky People. Their initials conflicts came from mutual misunderstandings that lead to violence, and each side retaliated (Or were associated with retaliations by rogue members) in an ongoing cycle that outstripped any peace negotiations.

The cycle got an explicit discussion in the third season when the Grounders and Arkadia seem ready to finally embark on their all-out war. After Pike launches an attack which kills three hundred Grounders that had been nearby to

revenge. She admits that there is no justification or excuse for what has passed, but points out that no matter how justified retaliation will be it will only lead to more revenge, and the only way for Lexa to create peace is to decide not to participate. Lexa accepts and decides to break the cycle of revenge.

Dare to Be Badass: After she was wounded during the Arkadia attack on her army, Indra was physically debilitated and regarded herself as weak. When Octavia asked for her help and was rejected, Octavia dared her to either waste away or stand up and take her revenge.

A Day in the Limelight: "Spacewalker" focuses on Finn and Raven, showing part of why Raven is so devoted to him.

A Death in the Limelight: The episode "Thirteen" takes place entirely in the Grounder capital Polis, with no scenes set in Arkadia. It gives more screen time to Lexa and Titus, and reconnects Murphy to the Polis/Arkadia plot. Lexa is shot and killed by Titus, who hoped to kill Clarke and frame Murphy for the murder in an attempt to spur Lexa to declare war on Arkadia.

Death by Sex: Lexa is killed in the scene immediately following her sex scene.

Death of a Thousand Cuts: One Grounder punishment for particular crimes is for a criminal to be staked out in the open, then for every one of the victims or relations to give a single cut until death.

Finn returns as a hallucination after Clarke mercy kills him.

Jaha has an hallucination of his dead son Wells when he is alone on the Ark trying to find a way to get to the ground.

Lexa returning as an avatar of herself to help Clarke in the City Of Light.

Decapitation Presentation: After the Ice Nation killed Costia to strike at Lexa, they had her severed head delivered to Lexa\'s bed.

Ontari kills all the night blood children and presents their heads in the throne room to declare her victory in the conclave and become the Commander.

Dehumanization: Mount Weather turns people in to cannibalistic animals they call Reapers.

Demonic Possession: A.L.I.E. possesses Raven and uses her body as a her own.

Destination Defenestration: Lexa tosses the Ice Nation ambassador off the high Grounder tower when the Ice Nation belligerence becomes too transparent.

Died in Your Arms Tonight: Clarke held Lexa and comforted her as she died.

Divide and Conquer: The Mountain Men recognize that the danger comes from the union of Clarke\'s motivation and planning with Lexa\'s numbers and martial might, so they work to split the alliance between the Ark and the Grounders. They succeed in splitting them apart, but without the luxury of a dominant position Clarke is forced to kill the entire Mountain population instead of allowing the civilians to survive unharmed as she had originally planned.

Don\'t Make Me Destroy You: Through the back half of season two, Clarke emphasizes to Lexa and the Grounders that their war with the Mountain is against its leaders and its policies: They will not slaughter its entire population. Once the engagement begins in earnest, she repeatedly asks their leaders to stand down or surrender instead of forcing her to kill them all. The Mountain refuses to negotiate, and she is forced to kill everybody.

Don\'t Split Us Up: When Bellamy\'s sister, Octavia, is arrested, he volunteers to be exiled with her so they won\'t be separated.

Downer Ending: The two-part season 2 finale has Mount Weather releasing their Grounder prisoners as part of a deal with Lexa which results in her taking her army and going home, leaving Clarke and the others to fight Mount Weather alone with some of their people about to have their bone marrow extracted and killed in the process. This forces Clarke into an escalating duel of wills with Cage Wallace, which eventually leaves her with no choice but to flood the mountain with radiation and kill all within, including Maya and several other innocents and allies. The remaining Sky People finally return home but Clarke can\'t bring herself to join them. In the B-plot, Jaha discovers that the nuclear warhead from the missile he rode to the ground has fallen into the possession of the insane A.I. that started the nuclear war in the first place and she wants his help with a unknown goal that will effect everybody.

The Dreaded: The "Reapers", a breed of Grounder so terrifying that even Anya and her tribe of hardened warriors don\'t dare venture into the tunnels that the Reapers call home.

Dreaming of Things to Come: "Bitter Harvest" opens with Lexa being woken from her sleep by a nightmare of the deaths of the previous Commanders. Clarke assures that it was just Bad Dreams, but Lexa believes that it is a warning from the Commanders: They believe she is betraying their legacy.

Driven to Suicide: Pre-teen Charlotte (the youngest of the young convicts sent to Earth), guilt-ridden over having killed Wells in a misguided attempt to quiet her inner demons and unwilling to be the cause of any more bloodletting, averts Infant Immortality by jumping off a cliff to her death.

Dropped After the Pilot: In the pilot, Abigail had a best friend called Callie Cartwig who was an important enough member of the Ark that she could act as liaison between the rulers and the people and speak on the council\'s behalf, and openly confronted Kane. She isn\'t even mentioned passed the first episode due to budgetary reasons, and Word of God is the character was executed offscreen

Double Standard: Abuse, Female on Male: Octavia\'s beating of her brother in 3x10 is framed in many ways as cathartic for the audience after Bellamy\'s actions in season 3a, but the incident (and the lack of stronger intervention by bystanders) would not have been accepted, much less celebrated, by the audience had their roles been reversed.

Double Standard: Rape, Female on Male: Ontari forces Murphy into having sex with her, by implicitly threatening to kill him if he displeases her. It\'s handled fairly lightly because he responds by smirking and sarcastically saying "the things I do to survive", and visibly finds her attractive. But of course if the roles were reversed it would be a lot more disturbing. Slightly subverted when he later tells Emori very emphatically that he had no choice, and she appears to sympathize.

Phase 2 of the Cerberus Program involves two Grounders killing each other for another dose of the Psycho Serum, which they\'re addicted to. Those that kill the loser go on to become Reapers.

This is the way a new Commander is chosen; all available Nightbloods are pitted against each other in combat, and the last survivor is made Commander. Often, the Nightbloods involved have all been raised together, and can include children or siblings.

According to the laws of the Grounder Coalition, only a unanimous vote by the ambassadors or death can remove the Commander. When Queen Nia is unable to secure all thirteen votes, she challenges Lexa instead, choosing her son Roan as Champion to fight in her stead in single combat with Lexa. Lexa wins the fight, but instead of delivering the killing stroke against Roan she turns and hurls her spear into Nia on the sidelines.

The full Ark funeral prayer is "In peace, may you leave the shore. In love, may you find the next. Safe passage on your travels, until our final journey to the ground. May we meet again." It is often shortened to simply "May we meet again" as a traditional farewell between two people who are unsure if they will ever reunite.

The Grounder society is so wound up in combat that they only acknowledge an end to fighting when somebody dies: Their death prayer/blessing is "Your fight is over". Clarke\'s use of the phrase is a show of respect and is one of the first things to get Lexa\'s notice that she is more than just a \'normal\' member of Sky Crew.

The Ark has a tradition of \'speaking\' for the dead in a memorial service, where friends and loved ones of the deceased say a brief statement and leave an item of significance behind. When a memorial service is for multiple people, they are called up one after the others.

During his drunken depression in the beginning of the third season, Jasper stole the urn with Finn\'s ashes and took it back to the original camp the 100 had made around their dropship. What he ultimately intended to do with them is unknown, as he was extremely drunk at the time, passed out soon after his arrival, and accidentally spilled the urn after an argument with Monty. After the spill he collapses to the ground in tears.

"From water we are born, to water we return" is this for the Boat People/Floukru.

The 100 don\'t number a hundred for very long, much to the chagrin of their leaders. They were actually "the 98" within the first twenty minutes of the show. The producers have joked that by the end of the first season, they should be called "The 50". In the first season finale, Bellamy notes that 18 people have died out of the population of 102...and that\'s before the battle with the Grounders. In the second season, they have the additional threat of the Mountain Men wanting their ability to withstand radiation to contend with. By the second season finale 48 of the original 102 are left according to the staff

The band of followers Jaha takes with him to find the City of Light. By the second season finale\'s end, only he and Murphy are still alive. This is acknowledged by Abby in season 3 when only Jaha returns.

Clarke\'s mother directly had a hand in her father\'s death and Clarke herself spending a year in solitary confinement for simply

Bellamy and Octavia\'s mother kept Octavia hidden under the floor of their quarters for

. When this was found out, she was executed, Octavia was imprisoned, and Bellamy lost his spot on the guard.

Raven\'s situation is not too expounded upon, but it\'s mentioned that her mother was an alcoholic and neglectful and that it\'s somehow messed up enough that she considers Finn the only family she has.

Murphy had two loving parents until his father got floated stealing medicine for Murphy\'s illness and his mother spent the rest of her life blaming him, while drinking herself to death.

Monty is reunited with his mother in Season 3, but she has a deep hatred for Grounders and she backs up Pike\'s plan to rage a war on them, that even leads to her betraying Monty.

Dystopia: The Ark isn\'t a great place to live, what with harsh laws and the tight restrictions on resources and population, but it\'s mostly just a matter of trying to survive on limited resources. It\'s still not without reason that the kids are happy to be left to their own resources on Earth.

Emotions vs. Stoicism: Discussed during Season 2. Lexa believes that Love Is a Weakness and that Clarke should follow her example if she wants to be an effective leader. Clarke tries and comes to the conclusion that closing yourself off to all feelings is pointless.

Empathy Doll Shot: Dolls or toys are sometimes found and focused upon in pre-war ruins, calling to mind the children\'s death. The second season finale has the soccer ball that some of the Mountain Men children were seen playing with - in the scene where they have all died from radiation, it makes a reappearance at the very edge of the screen, hinting at the children\'s corpses just beyond it.

End of an Age: By the end of season 4 the Status Quo that had been synonymise for the first three seasons ends up being broken completely. Due to the Praimfaya wave all remaining twelve clans are forced to become one (called Wonkru) and 100 survivors from each clan band together to survive the radiation. Not only does this remove all of the individual clans from the equation but for the first time in Grounder culture the leader of their new people is no longer a Nightblood but instead a former member of Skaikru Octavia. Indra even lampshades this noting that the time of the Commanders has passed.

Clarke works with Anya to escape Mount Weather in "Reapercussions," and despite their conflict throughout the escape Anya agrees to propose an alliance to the Grounder Commander against the greater danger of the Mountain. Anya is mistaken for an attacker by Ark security personnel and killed before she can do so.

Camp Jaha and the Grounders are mistrustful of each other, but are willing to work together to take down Mount Weather because they both have people trapped inside. The Grounders break the alliance when they make a separate deal with Mount Weather.

Queen Nia of the Ice Nation allies herself with Emerson, Last of the Mountain Men in order to go after Clarke and the Coalition.

Everyone especially Octavia are forced to work with Pike who caused problems for them earlier in the season and is also responsible for Lincoln\'s death to take on A.L.I.E.

Eternal English: After a hundred years of mutual isolation, the Sky People, Grounders and Mountain Men can all understand each other perfectly fine in English, although the Grounders do have their own Conlang as well.

Everything Trying to Kill You: Averted, despite the characters believing it to be the case. Despite talks about how "everything" is toxic on Earth, plants and animals do not seem to be any more or less dangerous than the natural flora and fauna of the real world. By the second season the Sky People have learned how to naturally survive.

Even the strictly controlled dystopia of the Ark is reluctant to kill children, holding them until they are eighteen to receive a trial then.

Murphy has shown himself to be a general Jerkass, who is quite comfortable with cold-blooded murder when he\'s not out being the local bully. But even he is horrified when Finn attacks a village, starts threatening them, and then cracks and starts slaughtering them. Likewise, later when Jaha sacrifices their companion to a sea creature to keep him and Murphy from getting eaten, Murphy is horrified and refuses to continue traveling with Jaha.

The President of Mount Weather, for all that he appears to be somewhat shady and cagey, does refuse to countenance forcing the teenagers in the complex to be experimented on.

Exact Time to Failure: In Season 2, one of the Mountain Men is kept alive to deliver a message by foot to Mount Weather. He is given 6 hours of oxygen to make an 8-hour walk.

Explain, Explain... Oh, Crap!: Finn and Clarke were talking about how her friend Wells betrayed her.

Finn: Are you sure Wells told his dad? Clarke: He\'s the only person I told.

[Clarke stops to think for a moment. The only other person who knew was... her mother.]

Eye Scream: After Lexa\'s death and Ontari\'s murder of all the other Nightbloods, the latter gouges a Grounder ambassador\'s eyes out in retaliation for him having challenged her rule one too many times.

Facial Markings: The Grounders bear both facial tattoos and heavy makeup around their eyes. Their exact meanings have not been revealed, but they seem to indicate origins of clans and ranks within them.

Later, Ice Nation (Azgeda) members are seen to be identifiable by large decorative facial scarification and white face paint.

Faking the Dead: Removing the wristband monitors makes the wearer appear to be dead as far as the people back on the Ark know. After the landing, Bellamy wants to make it appear that The 100 all died so the Ark won\'t send anybody else down, leaving them free to live by their own (lack of) rules.

Family of Choice: Because of their time on the ground away from the adults in space and the hardships they undertook to survive, the 100 become fiercely protective of each other and consider each other family.

Fanservice: The initial episodes had Octavia frequently in revealing (Or no) clothing as she reveled in being free on Earth, but this aspect was dropped from the show before the end of the first season. All characters are dirty, wounded and swathed in armor and makeup as required by their station.

Fan Disservice: "Perverse Instantiation � Part 2" includes a scene where Ontari\'s shirt is cut open as is her chest, because she\'s brain-dead, and Abby and then Murphy have to

keep her heart beating and send Nightblood from Ontari to Clarke so she can complete her mission.

The conflict between the members of the Ark and the Grounders are that both sides having a negative opinion of each others culture and beliefs and the fact that both sides have killed members of the other.

Mutants known as Nomadic Grounders are shunned in Grounder society, traditionally killed in infancy. If a parent chooses not to kill the child they must be exiled from the community and sent to the wastelands.

Most of the residents of Mount Weather see the Grounders as savages and this is why they didn\'t have a problem with the experiments on them.

The Farm Station survivors hate and distrust all Grounders after spending months on the ground being attacked by the Ice Nation and only having the knowledge that they were at war with the Grounders while having no contact with the other Ark survivors and because of this they.

Fantasy Counterpart Culture: The Grounders are increasingly looking like the First Nations, especially in relation to the would-be colonizers from the Ark.

Fantasy Gun Control: The Grounders do not have any technology resembling firearms, not even primitive explosives. Season two reveals that this is enforced by the Mountain Men; they destroy the entire village of any Grounder who so much as touches a gun, so the Grounders live in superstitious dread.

Felony Misdemeanor: Due to All Crimes Are Equal, the tiniest misdemeanor is the same under the law as cold-blooded murder. However, although they are punished equally by the law, society hasn\'t come to view misdemeanors as death-worthy offenses and instead resents the laws, at best accepting them as a brutal necessity.

Fire-Forged Friends: During the pilot, five of the main cast, Clarke, Octavia, Jasper, Monty and Finn go off to Mount Weather to get food and supplies. During this hike, Jasper saves Octavia from being killed by a snake and then, after he tries to show off his courage, gets Impaled with Extreme Prejudice. The other four (except Octavia because she\'s injured from the snake) plus Bellamy go to save him. This results in them all becoming close friends.

First-Episode Spoiler: The reason the 100 were sent to Earth is because the Ark is dying, a fact those in charge are trying to keep from the general populace. The Earth is also not as empty as they Ark had believed.

Five-Man Band: Usually the 100 will split into this.

The Lancer: Her Foil, Bellamy. Briefly replaced by her Shadow Archetype, Lexa, in season 2.

The Smart Guy: Wells. Later replaced by Teen Genius, Raven.

The Big Guy: Finn. Later officially replaced by Aloof Ally, Lincoln.

Sixth Ranger Traitor: Murphy in season 1. Lexa in season 2.

For Your Own Good: A recurring theme in the Grounder story-arcs is Lexa\'s loyal subordinates believing that her working with the Sky Crew will bring about her own destruction, so they attempt to trick her into breaking away.

Gustus, Lexa\'s bodyguard and close confidant, poisoned himself in an attempt to frame Raven as attempting to assassinate Lexa. He feared that working with the Sky Crew would lead to a weakening of Lexa\'s position and risk her death, and he wanted to preemptively destroy any potential alliance so that she would be safe. His plan was exposed and, in Grounder custom, he is tortured to death.

Titus, the Flamekeeper and Lexa\'s teacher and advisor as Commander, opposes Lexa\'s admission of Arkadia as the thirteenth clan and argues strenuously against all of Lexa\'s attempts to forge a peace. He believes that such actions will only weaken her position and lead to her death at the hands of her own people and the fracturing of the Grounder Coalition, so he does everything he can to push her to a more violent path. Ultimately, he attempts to murder Clarke and frame Murphy for the deed so that Lexa will be spurred to vengeance against Arkadia, but he accidentally kills Lexa instead.

Forgiveness: Discussed. Clarke and Bellamy are good at forgiving each other for the heinous crimes they\'ve committed, but cannot forgive themselves.

The first part of season 2. By the fifth episode, they\'ve converged.

Clarke escaping Mount Weather along with Anya, leaving the rest of the surviving 100 behind. After Clarke makes it back to Camp Jaha, scenes with Jasper, Monty, and Miller fill in this plotline.

Bellamy, Murphy, and Finn searching for Clarke and the others.

Abby and Kane struggling to lead Camp Jaha.

Octavia trying to find Lincoln and the others, coming into conflict with Grounders.

Jaha crashlanding on Earth after being left behind in "We Are Grounders pt. 2" and making it back to his people.

Freeze-Frame Bonus: Pausing shots of the drawings present in Clarke\'s drug-induced hallucination in "Day Trip" show future developments like the Polis skyscraper and the "backpack" A.L.I.E. is contained in.

There is a possible truce between the Grounders and Camp Jaha in order to deal with Mount Weather. But, to solidify it, the Grounders want Finn to die for killing all of the innocent people at the village. Clarke chooses the alliance.

At the climax of season two, Cage offers Lexa a deal: He will let all of the Grounder prisoners be released in return for her abandoning the Sky People. Lexa chooses her duty to her people—even though she\'s obviously in pain, and official commentary says she had genuinely fallen in love with Clarke.

Future Slang: Averted. Slang doesn\'t appear to have evolved much at all during the last 97 years. A single exception is the term "floated"; used to refer to spacing, it has come to be a catch-all term for being killed that persists even after returning to Earth. It\'s also used as a slur, as in "go float yourself".

Gender-Blender Name: Main characters Clarke (female) and Bellamy (male). (Out-of-universe, both were named for Arthur C. Clarke and Edward Bellamy.) This also applies to some other characters like Indra (named for a generally male Hindu deity).

Genocide Dilemma: This comes up in both the second and fourth seasons

The end of the second season comes down to a question of whether Clarke will kill the entire population of Mount Weather, including those who aided her friends, or allow the Mountain Men to kill her friends. She and Bellamy ultimately go through with it, killing off the entirety of the Mountain Men population.

In season 4, Clarke is made to choose whether to save only her own people from Praimfaya, a massive wave of radiation that will kill everything on earth that isn\'t protected by a bunker and doom every single Grounder to death, or to save some Grounders and cause the death of her own people. She chooses to allow the Grounders to be wiped out, but Bellamy takes the decision out of her hands.

Gilded Cage: How Clarke sees Mount Weather, contrasting Jasper\'s view of it: They have great facilities, they are cared for, and the president actually seems like a pretty stand-up guy, except that the 100 are not allowed to leave and Clarke fears that they have an ulterior motive. Ultimately, the Mountain Men begin to kill the Sky People to harvest their blood and bone marrow.

Give Me a Sword: While engaged in a Duel to the Death with Lexa, Roan\'s sword is taken away and used against him. Without a weapon of his own, he runs up to one of the guards overseeing the event, punches him across the face, and takes his spear to use.

Greater-Scope Villain: Season One focused on petty squabbles between the 100 and the Trikru. Come Season 2, we are introduced to the Mountain Men, who the Grounders greatly fear, whose kidnapping of both Grounders and Skaikru forces a plot of cooperation between the Trikru and Skaikru leaders. Season 3 ups it again by introducing the

murderous A.I. that started the nuclear holocaust in the first place

against an increasingly fragile alliance among the clans. Season 4 tops them all by focusing on the Praimfaya death wave, which motivated ALIE\'s actions in the last season.

Raven is very jealous after she risks her life to come down Earth to find Finn, only to find that he has slept with Clarke and continues to prioritise his feelings for her. This isn\'t helped by people repeatedly drawing attention to it.

The trope is downplayed in season two, as Monty is noticeably irritated that the budding romance between Jasper and Maya is driving a wedge between Jasper and Monty\'s old friendship.

Hair-Contrast Duo: Blonde, idealistic, caring Clarke with, well, pretty much everyone she interacts with at first, especially her more pragmatic mother and the older, moodier Bellamy. After she has made the damning moral compromises at the end of season two, her hair has been artificially darkened at the start of season three.

Hereditary Republic: The Wallace family has held the Presidency of Mount Weather for three generations.

He Knows Too Much: Clarke\'s father was executed because he found out that The Ark was running out of life support systems and tried to go public with the information.

History Repeats: "Unity Day" in the first season revealed that the twelve space stations only came together to form the Ark after a thirteenth station had already been destroyed; in season three, the Arkadian settlement is offered a chance to join the Twelve Tribes in the Grounder coalition. Clarke explicitly states that they have a choice of either becoming the thirteen tribe or being the thirteenth station again. The Arkadian leaders defy a repeat of history and choose to join the coalition.

Hufflepuff House: The Grounder Coalition is made up of 12 Clans, but the only ones that get any development or screen-time are the Woods Clan (The Tree People or

). The creators have named and given logos to the other 9, but they have yet to appear.

Human Resources: Season two reveals that the Mountain Men have used Grounder blood to treat their weaknesses to radiation, and in season two begin to harvest bone marrow from the Sky People as well.

I Cannot Self-Terminate: Clarke punctures Atom\'s jugular to spare him a more drawn-out death after he\'s burned so badly by acidic fog that he can barely move and is begging to die.

I Did What I Had to Do: Multiple people on the Ark claim they alone are doing what must be done. Kane uses it to justify ordering Abby\'s execution for breaking a minor law to save Chancellor Jaha, while she says she did what she had to do to save Jaha so Kane would not become Chancellor. This becomes a recurring theme throughout the series as multiple characters on all sides of the conflict find themselves forced to unfortunate actions.

Bellamy and Pike use this to excuse slaughtering three hundred friendly Grounder soldiers in their sleep.

Clarke uses this exact phrase to excuse an increasing number of morally dubious choices that tend to result in a lot of people dying.

When Octavia chooses to stay and help Bellamy rather than retreat with the rest of the Grounders, Indra says that she is no longer her second.

Octavia outright tells Bellamy that "[he\'s] dead to [her]" due to his indirect role in Lincoln\'s death.

A chilling example is when Jaha talks about the pills to "the City of Light" and how they take away pain by making you forget the thing that causes it. Thus, when Abby asks how Jaha\'s son would feel about this, Jaha honestly doesn\'t even remember the boy\'s name.

I Just Shot Marvin in the Face: In "Thirteen", Titus attempts to kill Clarke and uses a gun in the hopes of framing the Sky Crew. Since the Grounders have no firearms he is unfamiliar with its use, and when he is firing wildly he kills Lexa instead.

"I Know You Are in There Somewhere" Fight: When Bellamy sides with Pike over Kane, Clarke believes that if she can reach him she can convince him that peace with the Grounders is the best option. She pleads with him not to turn into somebody who believes that war is the better option and to work together to find a solution for everybody. Bellamy refuses her call, claiming this is who he always ways, and that his better actions with Clarke and Octavia were when he was acting out of character.]] Double-subverted in the back half of season 3, where he admits that he regrets his actions and now has to live with the consequences.

The Grounders and the Ark-survivors are able to live on the surface because they had adapted over time, with natural selection ensuring that immune grounders passed it on and the Ark-survivors grew up with solar radiation, which is even stronger. The people who live in the underground base didn\'t, so any exposure to the outside world could kill them.

Octavia, Jasper, and Finn are immune to the virus the Grounders send to weaken the camp.

The Nightblood are the only ones able to survive the radioactive Black Rain. though they\'re in a lot of pain in the first exposure.

As it turns out, they can also survive the increased radiation from Praimfaya, though not the front wave of it.

In-Name-Only: The show keeps the basic premise of the books (a hundred juvenile delinquents sent down from space, four of whom are named Clarke, Bellamy, Octavia, and Wells) and very little else.

Incredibly Obvious Bomb: A grounder sets a dramatically ticking bomb in Mount Weather.

Infant Immortality: Averted. Not even kids are safe on the Death World. Preteen Charlotte is Driven to Suicide and young Artigas is shown to be one of the victims of the Grounder massacre. Bellamy is notably conflicted about killing off the innocent kids in Mount Weather, but he and Clarke end up doing it to keep the Sky People safe.

Info Dump: The pilot starts with a rather massive one that manages to load the main backstory into a couple of minutes of narration and As You Know conversations.

There\'s another one at the end of season 4 after a Time Skip. Clarke, in a daily transmission to Bellamy, lays out the state of the world after Praimfaya, though she\'s aware that she might be talking to no one.

Intergenerational Friendship: Murphy and Jaha on their journey in season 2. They do grow closer, but it\'s also happening in the middle of Jaha\'s Sanity Slippage, and their friendship soon sours because of this.

Intimate Artistry: In the opening scene of the episode "Bitter Harvest", Clarke sketched a portrait of Lexa as she slept. The sketching shows both Clarke\'s growing feelings for Lexa and also Clarke\'s general acceptance of Grounder living, as she hasn\'t done art since before being sent to the ground. After she awakes, Lexa discovers the drawing.

Involuntary Battle to the Death: The Grounders force this on Jaha and Kane, with the ultimatum that both of them will die if they refuse. They resist for two days instead discussing how to broker peace. Turns out to have been a Secret Test of Character by Lexa, who had posed as a slave girl in the same cell in order to decide whether their desire for peace was genuine.

In the second episode, Murphy chides Finn for thinking that \'the rules\' do not apply to him. Finn responds with Murphy\'s own philosophy: "I thought you said there are no rules."

In the third episode, \'slaying demons\' is used to refer to facing fears and overcoming obstacles. Charlotte takes the wrong lesson from this and, as she kills Wells, repeats "I have to slay my demons."

"Murphy\'s Law": "The less you know, the better."

"I Am Become Death" has the single word "Bygones." Murphy first says it to a former enemy to convince him that he is no longer holding a grudge, then later repeats it when murdering said former enemy (because he was definitely holding a grudge).

In "Coup de Grace": "You have to trust that I know what\'s right for us."

Just before taking Jasper away to harvest, Doctor Tsing says to the teens "I want you to know, you\'re very special to us." When she is afterwards dying from radiation poisoning, Jasper and other members of the 100 stand over her and repeat the words.

In "Blood Must Have Blood, Part 2", Lincoln injects Cage with the same drug used to turn Lincoln into a Reaper. As Cage dies, Lincoln says "the first dose is the worst, " the same thing Cage said when he first dosed Lincoln.

Jerkass Has a Point: In "Murphy\'s Law", Murphy is brutally beaten and nearly hanged for a murder he didn\'t commit after Clarke accuses him loudly and publicly without considering the consequences. Afterwards, when Murphy wants to execute the

murderer, even Clarke realizes that she should have handled the entire situation more quietly from the beginning. Murphy\'s main argument is also that if they were willing to execute him on no evidence whatsoever, it\'s only fair that the same penalty apply to the actual confessed murderer, even if she\'s only 12 years old. It\'s not an entirely unreasonable point.

Just a Kid: The adults of Camp Jaha repeatedly dismiss Clarke, Bellamy, Finn, Raven, etc. and insist on enforcing their way of doing things, despite the 100 knowing more about Earth by the time they arrived, because they\'re "just kids".

Just for Pun: The survivors of the Ark rename their settlement on Earth as

Kangaroo Court: The Commander of the Grounders allows them to put Finn on trial, but expects they will condemn him to death because of his crime.

Karmic Death: In the finale of season two, Cage dies from the very drug he used to turn Grounders into Reapers,

the very syringe he was about to inject Lincoln with. The event even comes with an Ironic Echo.

Klingon Promotion: Discussed in season three when Nia, the Queen of the Ice Nation, has challenged Lexa\'s authority as the Grounder Commander. When she selects her son Roan to fight Lexa in Trial by Combat, Clarke approaches him and tries to persuade him to kill his mother instead and thus become King. Roan considers it, but declines because he knows that the Ice Nation would never forgive him or accept him as their King in that situation. He does, however, offer to help

kill her instead. Nia survives Clarke\'s assassination attempt, but during the fight between Lexa and Roan, Lexa spares Roan and kills Nia on the sidelines. She then declares Roan King of the Ice Nation.

Played straight with Ontari who become the commander when she kills all the nightblood children who were her competition in their sleep but subverted in the fact that she is a Fake King because Titus gave the Flame to Clarke to give to the other candidate Luna because he didn\'t agree with what Ontari did and without the Flame, Ontari can not be the official leader.

Last Episode, New Character: Both the Mountain Men (the antagonists of Season 2) and A.L.I.E. (the antagonist of Season 3) were shown in the last minutes of the last episode of the season prior to their official introduction.

As of season 3, Emerson, Last of the Mountain Men, is the Sole Survivor of the people of Mount Weather. But subverted when he dies later making his people officially extinct.

After Ontari\'s death in the penultimate episode of season 3, Luna remains the last known living Nightblood, but it is implied that there may be others in other villages and clans.

Abby\'s experiments later turn Clarke into a Nightblood. During the six-year Time Skip, she\'s found at least one other surviving Nightblood.

The radiation kills everyone from Floukru save Luna, due to her nightblood resistance. Thus she\'s a

example. Unforunately, this loss drives her over the Despair Event Horizon and she becomes a Straw Nihilist, leading to her death at Octavia\'s hands.

Last-Name Basis: (John) Murphy, (Nathan) Miller and (Zoe) Monroe are referred to by pretty much everyone by their last names. To a lesser extent, (Thelonius) Jaha and (Marcus) Kane are this to the younger characters, but Abby calls them both by their first names.

Last Request: As she dies accidentally at his hand, Lexa makes Titus swear that he will never again try to harm Clarke. He agrees and swears to it.

Layman\'s Terms: Abby pulls one of these with Raven in "Fog of War" while they listen to jammed radio frequencies.

Legend Fades to Myth: The First Commander began the process of uniting the Grounder Tribes in the city of Polis, created the original Nightbloods, and upon her death her spirit chose her successor, who in turn chooses the next Commander as the chain continues down. "Thirteen" reveals that the First Commander was Becca, the technology innovator who created A.L.I.E., the AI which ended the world. Becca had been living aboard the space station

trying to create a new AI to repair the damage and save the world, and fled to Earth when others on her station learned her connection to A.L.I.E. She used her blood to store information and passed it on to the Grounders she encountered, and the successful AI she developed is implanted in each successive Commander.

Let Them Die Happy: Kane\'s mother is the leader of the small religious sect on the Ark which cares for a sole tree through offerings of water, which he finds embarrassing and tries to distance himself from. Despite having earlier claimed to have forgotten their prayers when she asked him to transport their tree to the ground, when she is wounded by the bombing on the Ark Kane recites the prayer over her as she dies, causing her to smile before the end.

Our first glimpse of Mount Weather is in an all-white room, with Clarke in an all-white outfit. Everything is cleaner and more orderly than the Grounders, and the people are more polite. They are, however, the driving villain of the second season, whom even the Grounders fear and hate.

A.L.I.E.\'s proposed utopia is named "The City of Light."

Living Is More Than Surviving: A repeated theme throughout the show, and explicitly discussed by Clarke and Lexa. Lexa takes the position that survival is the most important issue in life, while Clarke takes the position that people as people deserve more. Ultimately, Clarke convinces Lexa that they

Machine Worship: Jaha and the City of Light followers toward ALIE.

Magical Defibrillator: Abby uses a shock stick to restart Lincoln\'s heart.

Make an Example of Them: "Thirteen" reveals that the original thirteenth space station did not

to join the other twelve stations to form the Ark, but rather the American space station decided to destroy it as an example to the others that they would need to accept draconian measures if they were to survive. The fact that the station had

to be refusing to join the Ark because of internal events gave a very good excuse.

Mauve Shirt: Initially the series focuses on the main cast trying to lead the 100, so some minor delinquents are given a bit of personality before their inevitable doom. Lampshaded by Myles, who comments that he and the main cast don\'t really hang out much. He\'s offed later in the same episode.

In "The Calm", Jaha informs Kane that the actions he took to help the survivors of the Exodus ship disaster were against the law. Kane responds that a wise man once told him that you have to know when

to follow the law, a Call-Back to Jaha and Kane\'s conversation in the Pilot.

The phrase "May we meet again" is used frequently by the Arkers, in both temporary-but-uncertain goodbyes and as last rites to the dead. Lexa repeats the Ark phrase to Clarke in "Blood Must Have Blood, Part 1" echoing Clarke\'s use of the Grounder rites over Finn in "Remember Me".

From the season two finale, "Blood Must Have Blood, Part 2":

Clarke had told Bellamy that "[he] did good" with the 100 in "We Are Grounders." Kane tells him this again after the Arkers are freed.

The phrase "good guys" — in an earlier episode, Abby chides Clarke by telling to remember that they\'re the good guys. After Clarke\'s actions in this episode, she tells her mother that she tried, and Abby tells her, "Maybe there are no good guys." Said again by Clarke to Bellamy in "Demons" when he asks what to do when you realize you might not be the good guy.

Bellamy tells Clarke that if she wants forgiveness for irradiating Mount Weather and killing everyone inside, he\'s willing to forgive her — a direct parallel to their conversation in "Day Trip" where Clarke forgives him for indirectly causing the Culling. When Clarke refuses, she says "I bear it, so they don\'t have to", the same thing President Wallace said to her earlier in the episode.

Some of the names have some significant meaning.

The leader of the Mountain Men, who live in an Elaborate Underground Base, is named Dante.

In Classical Mythology, Cerberus was guard dog to the Underworld. The "Cerberus Project" involves creating Reapers out of strong Grounders so that the Grounders will fear Mount Weather.

Episode titles also occasionally fall into this.

One of the episodes is titled "Murphy\'s Law". Aside from things going spectacularly wrong at the camp, it also focuses somewhat on Murphy.

The episode "Day Trip". Aside from two characters going on a journey, it also features everyone getting high.

The episode in which Raven is possessed by A.L.I.E. and dishes out The Reason You Suck Speeches to the cast is titled "Nevermore".

Medical Horror: The terror of the final episodes from season two comes from the Mountain Men harvesting bone marrow from the 100, cutting them apart and draining them dry.

Melting-Pot Nomenclature: The Grounders have names from various sources to emphasize the rugged future, with names like Tristan (Welsh), Indra (Hindu), and Artigas (Spanish).

Clarke does this for Atom after he is caught in the acid fog, after Bellamy can\'t bring himself to.

It is the general policy of the Grounders to kill any Reaper\'s that they manage to capture, since they know of no way to reverse what was done to them. This extends to when the Reaper was a close friend or loved one, as they consider this a mercy instead of living as Reaper.

Clarke kills Finn to spare him from a slow death by torture; this angers both the Grounders (who wanted to see him suffer) and Raven (who wanted to save him).

Mood Whiplash: When Bellamy, Octavia, and two guards are scoping out the old parking garage, the guard Scott finds a wind-up music box. It plays "Carol Of The Bells", and the two guards smile and enjoy the toy when they are set upon by two Reapers. The music keeps eerily playing as Bellamy and Octavia discover the Reapers finishing the job.

The whole conflict between the Grounders and the Sky People because both sides saw the others\' actions as unjustifiable and thought the other side were the ones who started the conflict and both sides at first failed to understand that they were both just defending themselves. This is also furthered by the Grounders\' culture being harsh and violent and it made making peace with them difficult as they refused to let the things the Sky People did to their people go and some of the Sky People also refused to forgive their actions against their people. This results in one or several members from both sides committing actions that either deliberately or accidentally restarts the conflict. Generally the whole conflict got started accidentally because of the 100 not knowing that people lived on Earth and that they were trespassing on their land, and therefore what they see as self-defense is viewed by the grounders as acts of aggression.

Discussed and debated when Finn massacres a Grounder village in his search for Clarke. Many attempts are made to justify his actions as because he "didn\'t know" and "meant well", but these excuses fell flat each time compared to the number of the dead. Ultimately, he surrenders to Grounder justice because there

no justification for his actions, and no amount of Us vs Them or we were at war thinking could create one. But of course the real problem wasn\'t just whether or not his crime was justifiable, but the way the Grounders wanted to punish him for his crime by subjecting him to a slow and painful death and even if he did deserve to die, he didn\'t deserve to die like that. Abby was even trying to find a compromise that would have him punished for the crime under Ark law, but the Grounders insisted that it had to be their way.

The Grounder and Sky People\'s conflict with the Mountain Men who created the Reapers and puts their people through painful experiments because both groups saw them as this great threat that needed to be stopped but they ignored the fact that the Mountain Men were doing the things they were doing to treat their people\'s fatal weakness to the radiation of the outside and their experiments on the 48 was an attempt to find a cure. Clarke who was leading the charge was the one who knew this because she was recently in Mount Weather before escaping and was already prepared to wipe them out to save her friends until Bellamy who is undercover on the inside tells her about the children and the faction that doesn\'t agree with the experiments which changes the plan to only killing the guilty party but not once does she try to find a solution that could get their people cured and get her friends out only being focused on saving her own people. Also Lexa and the other Grounders were also only focused on getting their people out which of course leads to the deal with Lexa to release her people on the condition that she retreats with her people and allows the experiments on the Sky People to continue and when she agrees she points out to Clarke that Clarke would have took the same deal if it was her people and of course Lexa\'s decision leads to Clarke and Bellamy wiping all of them out with the outside radiation.

The Mountain Men (particularly Cage, Tsing and the Mountain Guards) also are guilty of this because they could have tried to reach out to the Sky People and found a peaceful solution that could have involved doing the experiments without causing casualties but they decided not to on the grounds of not taking any chances on the possibility that they would say no and they were in a hurry because of radiation leaks in the facility potentially killing everybody in a few months and knowing that a conflict with the Sky People and the Grounders was coming.

Discussed in "Bitter Harvest", after Clarke has pleaded with Lexa to simply forgo war against Arkadia in order to break the cycle of violence between them. When she still asks for vengeance against Emerson of Mount Weather, Lexa explicitly asks her if Clarke\'s speeches about mercy only apply to her own people and nobody else. Clarke ultimately chooses to forgo vengeance herself in order to help support the overall peace.

Mushroom Samba: In "Day Trip" nearly everyone eats these nuts with hallucinogenic properties and starts tripping out.

Mutants: Present thanks to the extreme radiation post-nuclear fallout altering the genetic structure of some organisms. Their existence is established in the pilot, where the characters meet a deer with two heads. Among the Grounders, the mutants are ostracized and looked down upon being seen as bad luck and because of this they are banished to the wastelands or they are killed when they are born and sometimes their family is banished with them if they refuse to kill them.

The Mutiny: Diana Sidney takes over the exodus ship and sabotages the Ark after trying to kill the council.

Kane\'s reaction when he realizes that there was no need to have 320 people kill themselves.

Said verbaitm by A.L.I.E\'s creator, Becca, when she watches from the space station as A.L.I.E causes nuclear war to cover Earth.

Raven, when she realizes that A.L.I.E\'s way of "removing the pain" means she no longer remembers the feelings she had for Finn and how much he meant to her.

My Sister Is Off-Limits!: In the beginning of season 1, Bellamy tries to stop his younger sister from flirting with any of the people on the Ground, specifically Finn.

Bellamy also ties Atom to a tree all night for kissing her and Atom\'s responsibility was to look after Octavia while Bellamy was gone.

Bellamy at first doesn\'t approve of Octavia\'s relationship with Lincoln mostly because him being a Grounder, but he later starts to trust Lincoln with protecting her and starts to be okay with them being together.

The Needs of the Many: A recurring conflict — is sacrificing a few people for the greater good of everyone else the right way to go about it?

Kane thinks so, and gives the go-signal for what comes to be known as "The Culling" — 320 people killed to buy more time. He later realizes he was

Jaha initially seemed reluctant to believe so, but states as much in "Survival of the Fittest."

The reason Tsing is so willing to perform unethical experiments is that continued research will help the Mountain Men return to their proper home, when they get cured of their radiation illness.

Clarke is adamant about protecting everybody and thus doesn\'t want to hand over Finn to the Grounders and pushes for the rescue of the 47 in Mount Weather despite the costs.

The Neutral Zone: Played with in season three during the conflict between the Grounders and Arkadia. Lexa wishes to prevent an all-out war between the two people, but cannot allow Arkadia\'s repeated acts of aggression to go completely unanswered, so she enacts a five-mile quarantine surrounding Arkadia. She will not allow the Grounder armies to attack the settlement, but any member of Sky Crew who leaves the boundary will be killed.

Experimenting with the wristbands made every one of them short out.

Bellamy tells Charlotte she needs to slay her demons when she\'s awake in order to stop her nightmares. Later, she sees Clarke perform a Mercy Kill by stabbing the carotid artery. She murders Wells using the same technique she saw Clarke use, and says it\'s to slay her demons, given that Wells reminds her of his father, who killed both of her parents.

Several of the actions of the teenagers on the ground exacerbate the conflict between them and the Grounders, often on the basis of incomplete or wrong information. Most egregious is Finn failing to stop and consider any alternatives once he has his mind made up that the Grounders have kidnapped Clarke, even amid mounting evidence that they haven\'t.

Bellamy helps Pike carry out an unprovoked massacre of allied Grounders, which promptly destroys a very fragile alliance and has continuous negative effects throughout the rest of the season.

No One Gets Left Behind: This gets repeated frequently in the series, though it is not always upheld.

When Jasper is attacked and then captured by the Grounders, Clarke insists on going back for her once they realize he\'s alive. Finn rightly points out that they\'re likely to lose more people saving him, but decides to help when she won\'t be dissuaded.

No Periods, Period: The lack of the 100 dealing with any menstrual cycles while stranded on the ground without any supplies is explained in season three: Fertility inhibitors prevent both pregnancy and menstrual cycles, and people discuss removing them at the start of this season.

The Nose Knows: Ontari is able to smell the poison on Clarke\'s sleeve that she intended to use on Nia from across the room.

The Notable Numeral: The 100. It\'s supposed to be the number of dropped criminals, but Bellamy makes the drop as well, Raven follows soon after, and there aren\'t a hundred of them anymore.

Clarke and Bellamy come from wildly different backgrounds: she\'s the only child of influential parents and grew up relatively privileged, while he and his mother (who weren\'t that well-off to begin with) had to hide his illegal half-sister her whole life. As a result of their backstories, Clarke respects authority while Bellamy resents it. However, they are both good leaders who are devoted to their people and have to make tough choices in order to survive, and for this reason their initial Teeth-Clenched Teamwork gives way to a more genuine partnership.

When the 100 learn that the Grounders are coming at them with an all-out attack, Bellamy motivates them by saying that they are Grounders as well and that they have learned to fight and survive on the ground and have as much right to be on the ground as they do. However in an attempt to prevent a battle and convince everyone to abandon the fort and try to seek shelter with Luna\'s clan, Clarke steps forward and says that they are not Grounders and she also say this because she does not want them to descend to savagery in the name of self-defense.

Abby says the line verbatim after she witnesses Lexa execute Gustus for his attempt to sabotage the Grounder/Ark alliance. Whether she meant the government\'s willingness to use draconian measures to enforce their authority, or the people\'s willingness to accept those draconian punishments to do the right thing, she did not clarify.

When Abby and Kane are trapped under rubble for most of "Resurrection" following Mount Weather\'s missile attack in the previous episode, they gradually realise that the tough choice Clarke had to make was like the life-or-death choices they had to make on the Ark. She knew the attack was coming and could have warned them, but if she had then Mount Weather would have figured out they had someone (Bellamy) inside who was working for them. She sacrificed a small number of lives for the greater victory.

Foreshadowed and implied throughout the beginning of season three, "Thirteen" reveals that the Grounders and the Sky Crew have a historical connection leading back the formation of the Ark and the First Commander.

Not So Similar: After Bellamy motivates the 100 in the face of a Grounder attack by explaining that after learning to fight and survive they are Grounders as well, Clarke steps forward and says that they are

Grounders. She does not want them to descend to savagery in the name of self-defense and she was attempting to convince them to try and seek shelter with Luna\'s clan instead of fighting in a battle that they could possibly lose.

Nuclear Nasty: One of the threats of a post-nuclear-apocalypse Earth. The first animal seen is a beautiful buck grazing in the forest-and then it turns and we see it has part of a second head growing out of its first. Mutant humans are also present, often with physical deformations such as extreme syndactyly or a deformed mouth or hand.

Occupiers out of Our Country: The very beginning of the conflict between the Grounders and the Ark stems from the Ark "invading" Grounder territory when they sent the 100 onto their land and promised more to follow.

Said word-for-word by Jasper in "Join or Die" after he and Octavia drink from the Grounders\' vial...and then she passes out.

Ooh, Me Accent\'s Slipping: Both Eliza Taylor and Alycia Debnam-Carey let their regular Australian tones peek through briefly in "Thirteen" (Taylor when Clarke says "Stop" in one scene, Debnam-Carey more noticeably when Lexa is shouting at Titus later on).

Open Secret: Maya states everyone in Mount Weather knew that the Grounders were being harvested for the sake of their blood. Only the Ark kids didn\'t.

Only Child Syndrome: Bellamy and Octavia are the only siblings seen, and their being siblings is given special weight considering no one on the Ark is allowed to have more than one kid.

Only One Name: All the grounders; surnames don\'t seem to exist among them anymore.

Only the Knowledgable May Pass: According to supplemental material, the Grounder Conlang started as a series of code-words used after the initial nuclear war to distinguish who was or was not a member of their particular group. Over the following century it developed into a fully developed language which the Grounders use alongside English.

Parenthetical Swearing: "Float" (The term for an execution by spacing, which has become a catch-all term for "kill") is often used in the place the the \'f\'-word for swearing.

Peace Conference: Finn tries to organize one between the Grounders and The 100 to prevent violence from escalating once people from the Ark arrive. Both sides brought weapons as a matter of security, and Jasper believed that the Grounders were planning an attack and shot first, putting the two sides officialy at war.

It is general Grounder tradition to bid farewell at death with "Your fight is over", recognizing that the deceased are finished with the hardships and struggles of the world. Whether the specific dying person peacefully

fight is over" (Emphasis added) to show that she is accepting of what is happening.

Clarke also uses the first-person variant when she has to do a time-consuming Heroic Sacrifice, which would leave her no time to get back to safety. However, she actually survives, though everyone else believes she died.

In the S1 finale when it\'s decided the entire Ark would be sent down to the ground, but it was likely only one section of the station would survive. Naturally, it\'s the only section with named characters.

The Mount Weather missile attack doesn\'t manage to kill any of the named characters.

Jaha\'s band of followers dwindles over the course of Season 2, leaving just him and the

Population Control: By the Ark\'s laws, people are only allowed to have one child, the medical resources allowed for saving a single life are strictly limited, and even minor criminals over eighteen are executed instead of imprisoned to conserve resources. Being an illegal child is just as illegal as having one. If the population is still too high to be sustained, then even innocent people can be executed.

The Promised Land: The City of Light, a supposed utopia for all outcasts. No one is really sure if it even exists, and the road towards it is dangerous.

Inverted. In the books, Wells and Clarke were in a relationship prior to his betrayal of her parents; in the show Wells clearly likes her but is offed before anything can come of it.

Inverted with Bellamy and Clarke, who get together fairly quickly in the books but show no explicit romantic interest in each other in the show despite clearly sharing a very strong bond. They do get a lot of Ship Tease moments, though.

Psycho Serum: The Mountain Men turn strong Grounders into the psychotic, murderous Reapers by injecting them with such a drug. They become so addicted to it that they\'re willing to kill others in order for another dosage.

Punny Name: Some of the episode titles. \'Inclement Weather\' and \'Day Trip\' stand out.

Race Against the Clock: Raven and Sinclair have to race to get the code to defuse the bomb placed in Mount W Eather.

Race Lift: Implied as much; in the books, Wells is half-brother to the Blake siblings, but this is unlikely in the show given the actors\' ethnicities

Eli Goree (Wells) is black, Bob Morley (Bellamy) is half-white, half-Filipino, and Marie Avergopoulos (Octavia) is white.

The Radio Dies First: Happens when the dropship crashlands on Earth. As a result, the 100 cannot communicate with the adults on the Ark, with their wristbands the only sign they\'re alive. Too bad Bellamy starts convincing them to cut them off...

President Wallace, the former leader of the Mountain Men, gives one of these to his son (Who has taken over Mount Weather and kept his dad confined). While it doesn\'t happen quite that way, the ex-President turns out to be right.

Dante: You\'ve killed us. One week in office, and you\'ve managed to turn neighbor against neighbor, you\'ve made the outsiders hate us more than they already did, you lost our outer defenses, and now a door that hasn\'t been breached in 97 years is going to fall, and an army of savages is going to flood these halls, killing every last one of us.

Raven deals out Breaking Speeches in this form in "Nevermore," calling out Clarke and Bellamy for all the deaths they\'ve caused and Jasper for being incapable of moving on.

Reasonable Authority Figure: Jaha and Kane for the Ark Survivors, and the president for the Mountain Men. Although Jaha quickly moves away from this.

AFTER THE END! AND COED! Though it quickly moves away from this premise.

Red Baron: As a consequence of the events of season 2, the Grounders take to calling Clarke "Wanheda", which means "The Commander of Death". Another epithet that she gains is "Mountain Slayer".

In season 4, the Grounders begin calling Octavia "Skairipa", meaning "Death from above", because of her growing infamy as a killer.

Redemption Rejection: When Murphy returned from his exile, he seemed to be on the path of redeeming his character, with some even accepting him back, but then he decides to go on a revenge killing spree instead. He gets better, thankfully.

Related in the Adaptation: Inverted. In the books, Wells is revealed to be half-brother to Bellamy and Octavia, but this is unmentioned and unexplored in the series.

Remember the New Guy: Season three introduces a few new characters in the time skip, whom the core cast are already familiar with as friends or family from back on the Ark.

The Remnant: The Mountain Men have been revealed as one for the U.S. Government/Military, based out of Mount Weather.

After Murphy regains the trust of the 100, he ruins it all by going on a revenge spree against the people who wronged him. He convinced himself that he would become the leader after killing Bellamy; his plan goes less than spectacularly.

When the Ark and the Grounders are preparing for their final attack on Mount Weather, Clarke is worried that in their rage the Grounders might decide to slaughter the entire population when given the opportunity, including even the children and the people who have actively aided them. The Grounders actually strike a deal with Mount Weather and abandon the Ark to face them alone.

A desire for revenge for Azgeda\'s attack on the settlement at Mount Weather leads to Bellamy joining Pike in his campaign against any and all Grounders, which ultimately results in Lincoln\'s execution by Pike.

Lincoln\'s execution by Pike (and indirectly caused by Bellamy) causes Octavia to beat the crap out of Bellamy, blatantly murder Pike, and then become a remorseless killing machine for a while, which earns her the nickname "death from above" from the Grounders.

Rousseau Was Right: One of the themes of the show is that many of the "villains" are basically good people stuck in wretched situations and forced to make tough decisions. Listing them:

Bellamy shot Jaha so he could come to Earth and look after his sister Octavia, and while he does put innocent lives at risk in an effort to save himself he also looks out for The 100 and tries to keep them alive.

Jaha has had a lot of people executed and he risked The 100\'s lives sending them to Earth, but it was all in the name of ensuring humanity\'s survival. Also, he\'s a Reasonable Authority Figure who tries to avoid unnecessary killing.

Kane plays a big role in the execution of 320 innocent Ark residents, but he\'s a Well-Intentioned Extremist trying to keep the human race alive. The realization that the aforementioned execution was unnecessary is a huge My God, What Have I Done? moment for him.

The Grounders attacked and killed members of The 100, but it was because they believed that The 100 were invaders, a belief that was "confirmed" in their minds when the flares that The 100 used to signal The Ark came back to the surface and burned down a Grounder village.

Royal Blood: Some Grounders have black blood, for which they are termed "Nightbloods". Grounder tradition has the Nightbloods identified as potential successors to the Commander, and one of them will arise to the position with the death of the current Commander.

Scenery Porn: Earth looks pretty damn good for a planet that was devastated by nuclear war, and the series isn\'t shy about showing off the awesome scenery.

The Scream: Used in "Demons" with Harper\'s scream bleeding into the intro credits.

Screw the Rules, I\'m Doing What\'s Right!: To do so risks becoming a Heroic Sacrifice under the Ark\'s laws, but a near-certain death sentence doesn\'t stop Abby from using as much blood as necessary to save Chancellor Jaha\'s life. This in turn leads to:

Screw the Rules, I Make Them!: Jaha pardons Abby and later tells Kane that knowing when not to follow the law is an important part of being Chancellor. Given he has spaced people for doing things like this in the past it seems that you should know not to follow the law if it\'s his life that was saved.

Secret Test of Character: Gustus, posing as the Grounder Commander, locks Kane and Jaha in a cell with a Grounder slave woman and explains that they must fight to the death, with the survivor allowed to offer him the Ark\'s offer of surrender. The slave woman is actually Lexa, who wished to see how Kane and Jaha would react and whether or not their professed desire for peace was genuine.

Self-Harm: After A.L.I.E. possesses Raven, she forces her host to make deep gashes along her arms

Sex for Services: Seems to be a common (though illegal) way to trade for favors with what limited resources they have on the Ark.

Bellamy\'s mother did this so she knew when to hide Octavia, as well as to secure Bellamy a spot on the Guard.

Suggested of Raven when she needs a part to complete an illegal space lifeboat.

Nygel: I owe a favor to the chief of electrical, and he\'s got a thing for tough, pretty girls like you.

After being confronted with Clarke and Finn\'s relationship, Raven sleeps with Bellamy to take her mind off Finn and Clarke being out together. She admits afterward that it didn\'t work.

In the beginning of season three, Clarke sleeps with Niylah as part of her ongoing efforts to cope with her guilt and despair over the end of season two.

Shoot the Hostage: Near the end of the second season, Lincoln is held hostage by a Mountain Men sniper. It\'s a sign of how far Clarke\'s gone from her All-Loving Hero beginnings that she simply shoots at the sniper\'s center mass through Lincoln\'s shoulder. Lincoln just congratulates her on her good aim and goes to get patched up.

Shoot the Messenger: When a pair of Grounders are sent to Arkadia to inform them of the blockade that encircles the settlement, they explain that the blockade will be lifted if Arkadia turns Pike over to them for punishment for his actions. After Pike refuses, Bellamy shoots both Grounders when they warned him to do what was right for his people.

In the season finale, one of the 100s shout "Game over, man!"

Ricky Whittle\'s character was only known as Grounder until he revealed his name to be Lincoln, which so happened to be the name of the character he played on an episode of NCIS in 2013.

The HUD of ALIE\'s drones is almost identical to the various terminators\' HUD in

Shrouded in Myth: A mere three months after the final battle at Mount Weather is all it takes to turn Clarke into a fearsome boogeyman among the Grounder tribes, known as

Significant Sketchbook: The series opens with an introduction to Clarke\'s artistic inclination, but during the constant conflict she is not able to indulge her hobby after being sent to the ground. Once she begins to settle into Polis, she begins to keep a collection of sketches, including one of Lexa drawn while she was asleep.

Sins of Our Fathers: Wells catches a lot of flak because people hate his father for enforcing the Ark\'s draconian laws. It gets him killed in the third episode, when Charlotte murders him because of nightmares about his father and Wells reminding her of him.

Sliding Scale of Idealism vs. Cynicism: The series proper is started with the discovery that the Ark\'s life support is failing, and a large number of its people need to be removed from the population in order to extend their existing air for long enough to repair the system. The Council believes that the population cannot be told of this information since it would lead to panic and unrest, while some of its members believe that the people deserve to know regardless. The Council\'s original plan was to have an "accident" to buy themselves the necessary time, but when the population does learn of this news, instead of rioting enough people volunteer to be culled in order to ensure the survival of their loved ones.

So Proud of You: When Indra said that Octavia had become part of the Trikru, Octavia\'s eyes glowed with the first acceptance she had ever known in her life.

Speculative Fiction LGBT: It\'s mentioned that the Grounders don\'t particularly care about sexuality in a world that has become so focused on survival, allowing this trope. Among others, there\'s Clarke (bisexual), Lexa (lesbian), and Miller (gay).

Spiteful Spit: When Clarke and Lexa come face-to-face for the first time in the third season, Clarke spits at Lexa and has to be dragged out of the room ranting threats. Lexa is visibly hurt, as she had hoped for a better reunion.

Sting: The tension of most dramatic revelations in the series are underscored by the Inception-style

Stop Hitting Yourself: When A.L.I.E. possesses Raven, she forces her to injure herself.

Stray Shots Strike Nothing: Averted; in "Thirteen", when Titus is firing a gun wildly due to his unfamiliarity with firearms, he accidentally hits Lexa with one of his stray shots.

Stupid Sacrifice: The idea of "culling" three hundred people from the Ark\'s population is proposed because they believe that the Earth is uninhabitable and they have no other options given the breakdown in the Ark\'s life support. As the 100 and audience learns at the start of the first episode, the Earth is habitable and there is no need for the culling at all.

However, later developments showed that there was no way to get everyone down to Earth safely.

Super Breeding Program: The original plan that Mount Weather had for the 49 kids were to insert them into the gene pool.

Lexa to Anya. She is introduced after Anya\'s death and takes her place as the Grounder leader that Clarke and the others are trying to reason with. They are also both stoics who are capable of wiping out Skaikru if they are seen as a threat. Justified, as Anya was mentioned to be the one who trained and mentored Lexa.

Subverted with Luna who is introduced after Lexa\'s death. Although she and Lexa are both stoic female leaders who care greatly about their people and have a soft spot for children, Luna\'s pacifism makes her completely different from Lexa who was capable of great violence when it comes down to it. Also seen in their deaths. Lexa died trying to bring about peace between the Grounders and the Arkadians, while Luna died a Straw Nihilist trying to end humanity\'s last chance of survival.

Take a Third Option: Given the deciding vote on whether to "cull" 300 innocent citizens to buy time to save the Ark, Chancellor Jaha chooses to abstain so the resulting tie will force a revote in ten days, giving Abby until then to prove the Earth is habitable or they will have to kill them.

Take Back Your Gift: Raven returns the pendant Finn made for her when she finds out that he is in love with Clarke.

Take Care of the Kids: Abby asks her friend Callie to watch over Clarke for her when she thinks she\'s about to be executed.

Taking the Heat: Wells is revealed to have been doing this for Abby, when he takes the blame for being the one who turned in Clarke\'s father which led to him getting floated to spare Clarke the pain of knowing it was her own mother who did it.

Finn took the blame for Raven\'s illegal spacewalk, because he (as a juvenile) would only be imprisoned while Raven (as an adult) would have been floated.

Talking in Your Dreams: Lexa believes that the previous Commanders speak to her in her dreams. It turns out they really were talking to her through the A.L.I.E 2.0 chip/The Flame.

Teens Are Monsters: Too much freedom leads to the kids going a little wild. Then they found themselves against the Grounders.

Teenage Wasteland: And how! The 100 consist of a hundred teenage juvenile offenders sent down to Earth\'s surface with absolutely no adult supervision. There was supposed to be a guard, but he was replaced by Bellamy, who is only a few years older. It takes them less than ten minutes to start taking off the wristbands that are monitoring their vital signs and less than a day to declare that their new motto is "Whatever the hell we want, whenever the hell we want." This doesn\'t last all that long, though — they are forced to get more organized and disciplined as the harsh realities of survival make themselves known.

In the early episodes, any collaboration with Clarke and Bellamy. They outright disliked each other then, but were willing to put the rest of the 100 above that. Later, it grows into genuine teamwork.

The alliance between the Grounders and the survivors of the Ark. There\'s rampant mistrust on both sides, but both want to take down the Mountain Men.

A constant component of any pairing when someone has to work with Murphy.

Several of the teenagers are named after famous science fiction writers:

Finn: Perhaps named after "The Finn," a character in William Gibson\'s

Lincoln\'s village was built around the Lincoln memorial.

Octavia\'s eligibility for both the historical and sci-fi name themes might be a nod to her dabbling in both cultures.

There Are No Therapists: Thus, nobody\'s around to help the cast with their increasing PTSD.

Jasper suffers from PTSD caused by a near-death experience and is unable to get help due to the only medical professional having no knowledge of treating mental illnesses. He then spirals into depression following Maya\'s death at Mount Weather which eventually culminates in him committing suicide rather than try to survive Praimfaya.

Finn suffers from PTSD as well, and without being able to get help he subsequently gets sentenced to death for his crimes relating to his mental illness.

Bellamy is implied to have kept the trauma he underwent in Mount Weather mostly to himself in the Time Skip between Seasons 2 and 3. This coupled with several Skaikru deaths in Mount Weather, including that of his girlfriend Gina, and Clarke\'s perceived betrayal by allying with Lexa, causes him to support Pike, which, in turn leads to a huge My God, What Have I Done? moment. By season 4, he doesn\'t think that he deserves to be one of the people who serves in the drop ship when the radiation comes and has a desperate desire to redeem himself before the end comes.

Lincoln\'s death triggers a Roaring Rampage of Revenge from Octavia, who claims that she died when Lincoln did. It culminates in her very nearly walking into the black rain just to end her pain.

They Do: Though their feelings for each other are apparent, Clarke and Lexa\'s actions throughout the second season and the beginning of the third are driven by the needs of their people, and they are thrown together and driven apart by circumstance and their own conflicting goals. In "Thirteen", they finally both admit their feelings for each other irrespective of the needs of their people. Lexa is killed following their love scene.

The back half of season two alternates between the Mount Weather crew and the rest of the Sky People trying to find a way to save them, but adds Jaha and Murphy\'s quest for the City of Light to the mix. It\'s geographically removed (as it\'s them trekking across unfamiliar terrain) and has little in common with the other two plots...until the season two stinger.

Season 3 begins with Clarke trying to negotiate peace in Polis, Bellamy, Kane, Abby at Arkadia dealing with Pike\'s politicking, and Jaha\'s own City of Light related plot.

Thousand-Yard Stare: Clarke, a few times in the episode that comes right after killing Finn

Thrown Out the Airlock: "Floating," the preferred form of execution, consists of putting a person into an airlock and ejecting them from the outer door.

Time Skip: Season 3 starts precisely 84 days after the events of the season 2 finale.

Season 4 ends by going forward six years and seven days.

Title by Number: Though they are also referred to as "The 100" in-story.

Title Drop: \'The 100\' is mentioned on a regular basis. Some of the episode titles too, e.g. \'We Are Grounders\' being part of Bellamy\'s speech in said episode.

Too Dumb to Live: Let\'s just say it\'s easy to see why Jaha considers most of the Hundred expendable. Frequently Clarke or Wells pointing out what they need to do merits nothing but contempt from the rest of the Hundred.

Torture Always Works: Averted twice, the series seems to stick with the real-life conclusion that torture is an ineffective means of information extraction.

Lincoln did not reveal the poison antidote when the 100 were torturing him, it was only when Octavia poisoned herself that he gave the information to save her life.

Finn tortures a Grounder for Clarke\'s whereabouts, and the Grounder gives them a trail leading to a Grounder village. He had had absolutely no knowledge of Clarke at all, and had sent them to the village because he had a personal grudge against its inhabitants and hoped Finn would serve as his revenge.

The Season one finale sees both regular sets utterly destroyed: The Ark is brought down, and the Hundred\'s camp is thoroughly incinerated.

Mount Weather gets blown up early in season 3.

By the end of season four, both Arkadia and Polis are destroyed by Praimfaya. The rest of the world is presumed to be in a similar state.

Tragic Monster: The cannibalistic and savage Reapers turn out to be a whole tribe of these. Season two reveals that they are former Grounder captives, who due to being physically fit were turned into Warrior\Slaves by Mount Weather experiments to be used as both weapons, hunters and gatherers against their will.

Trial by Combat: At the start of season three, Lexa\'s position as Grounder Commander is tenuous due to her perceived weakness. Nia, Queen of the Ice Nation, challenges her authority, naming her son Roan as her champion. Lexa also has the legal right to a champion, but since the underlying point is that her strength is in question she chooses to face the challenge herself. She wins.

Troubled, but Cute: Just about every teenage male shown-it comes with the territory of being a juvenile offender in a dystopian future.

Two Lines, No Waiting: The first season alternates between the 100 trying to survive on the ground and the adults on the Ark trying to survive in space.

Marcus Kane starts the series as next in line for the position of Chancellor on the Ark, and when it looks as though he will succeed Jaha Abby fears he would be disastrous for the people. However, despite several near-deaths on Jaha\'s part, Kane never succeeds him during the first season. By the time Kane does become Chancellor in season two he has undergone enough character development where he is no longer even a potential Tyrant.

Charles Pike came down to Earth from Farm Station, which landed away from the location of Camp Jaha and never took part in the Ark/Grounder truce of the second season. He has a fanatical hatred of Grounders and believes that coexistence is impossible, and is nominated for Chancellor after trying to carry out a preemptive strike on a Grounder army that Lexa had sent to protect Arkadia. He wins the election and is appointed Chancellor, and immediately orders the launch of preemptive strike.

Underground City: The Mountain Men live in a military base underneath a mountain converted to something of this sort.

Unkempt Beauty: Pretty much everyone on the show since they\'re mainly in survival mode.

Violently Protective Girlfriend: Lexa towards Clarke when anybody threatens her or tries to take her away from her.

Villain Has a Point: In season three, Clarke and Bellamy are arguing about the oncoming war between Arkadia and the Grounders. During the argument, Bellamy points out the moral and practical errors that Clarke had made which lead them to that point. Instead of countering the argument, Clarke can only apologize in tears, because she has also made mistakes.

sunlight is a death sentence for the Mountain Men since they\'ve lost their ability to metabolize radiation after a hundred years of living underground.

We Have Ways of Making You Talk: Said by Bellamy when they needed the antidote from the Grounder. The only one he gives it up to is Octavia, when she takes the poison herself.

"We Are Grounders": The Ark falls to the Earth, uniting the political plotlines of the adults with the survival story of the 100, and the Mountain Men are introduced to the story as a new adversary even more dangerous than the Grounders.

"Spacewalker": Finn surrenders to Grounder justice, and the rest of the Ark survivors allow his execution in order to solidify peace between themselves and the Grounders. Clarke herself performs a Mercy Kill to spare him a drawn-out death by torture, and allows it in order to unite the two people against the looming threat of Mount Weather.

"Blood Must Have Blood": The Grounders betray the Sky People in the conflict with Mount Weather, ultimately forcing Clarke and Bellamy to irradiate Mount Weather and kill off its population. Jaha and Murphy discover the City of Light, only to stumble upon the AI that ended the world the first time.

"Thirteen": Murphy realizes that the city of Polis was founded by members of the thirteenth space station,

, and the audience is shown the events via flashback. Lexa is accidentally fatally shot by Titus as he tried to kill Clarke, and it is revealed that the Spirit of the Commander which the Grounders have spoken of is actually an AI which is transferred from one Commander to the next and was programmed to help rebuild the world after the nuclear war.

"Perverse Instantiation, Part 2": It is revealed by ALIE that the nuclear plants are going to meltdown in 6 months and kill all life on earth even the people who are immune to radiation and this was why she putting people in the City Of Light as it was her way of trying to save humanity. Also Octavia kills Pike and walks away from everybody and it is unknown what direction the character is going.

"Die All, Die Merrily": Octavia manages to win the 13-clan Conclave against incredible odds (including the deaths of Roan and Luna), and gives a stirring speech proclaiming unity in which all clans will be allowed equal shares of people in the bunker underneath the tower in Polis, only for a last-minute reveal to show that Clarke and Jaha decided to pre-emptively seize the bunker for the Arkers/Skaikru only.

"Praimfaya": Clarke and a Night Blood child named Madi are seemingly the only humans left on Earth. Then a

from a penal colony in the asteroid belt lands on Earth...

What Happened to the Mouse?: The first season featured quite a number of mutants, both human and animal alike. A two headed deer featured prominently in promotional material. By season 3, they virtually never appear in any capacity.

Bellamy calls Clarke out for not keeping her mouth shut about the knowledge of Wells\' killer, as this ultimately led to Charlotte\'s suicide.

When Clarke meets with the leader of the Grounders to try and arrange a peace treaty, the Grounder rightly points out that some of the 100\'s actions could be construed as acts of war (such as capturing and torturing Lincoln). We also learn that the flares used to signal the Ark burned down a Grounder encampment.

Clarke and Bellamy deliver a joint one to Abigail for abandoning Finn and Murphy after they went out to rescue Clarke and killing off Anya, the only Grounder willing to work for peace between the two sides.

Clarke to Finn after he, usually the pacifist of the group, snaps and slaughters a large number of innocent villagers. Everyone else is clearly thinking it as well, but don\'t come out and say anything.

Raven to Clarke after Finn is mercy-killed. This is mostly due to Raven\'s grief, as she later realises there was no other way.

World of Snark: On a planet populated entirely by teenagers, this is pretty much a given.

Worst Aid: The show flip-flops on this. There are episodes where attention is drawn to the correct treatment of various injuries (e.g. leaving a knife in the wound until proper care is available) since Abigail is The Medic and Clarke studied under her. In other episodes, they happily transfuse blood of unknown donors and recipients, push arrows through wounds and so on.

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