Piper ends up in a mental institution after The chanzo brain washes her and tricks her into surrendering the Power of 3. It's up to Phoebe and Paige to prevent The chanzo from destroying them all.
The two scenes from Charmed when Piper finds out she was pregnant. Wyatt: 4x22 Witch Way Now? Chris: 6x16 The Courtship of Wyatt's Father It's just because I upendo those two scenes!