Charmed (1998): Season 5, Episode 12

5 - 12: Centennial Charmed

In his twisted attempt to win Phoebe's heart back, Cole casts a spell that alters reality, that eliminates Paige as a Halliwell and destroys the Power of Three. Meanwhile, Paige suddenly finds that her sisters have no knowledge of her existence and that past villians have come back to haunt them.