Phoebe prepares to get married, while completely unaware that The Source now holds complete control over Cole. Meanwhile, The Seer informs The Source that if the marriage is performed in a certain ritualistic way, he and Phoebe's future son will grow up to be the most powerful evil being on Earth.
Season 4 Episode 15 of Charmed resulted in a 0.00 rating in the 18-49 demographic.
The three Halliwell sisters have accepted their destiny of protecting the innocent and vanquishing evil doers, even though that is generally not on the agenda of every twenty-something on the fast track to discovering what life's all about.
Prue, the oldest, is driven to succeed and dislikes the free-spirited antics of the youngest sister Phoebe. Piper, the earthy middle sister, mediates between her siblings. Prue has the power to move objects, Piper to freeze time and Phoebe to see the future. In the fourth season, Prue died and was replaced by Paige, a half sister, who has the power to move objects and orb (teleport).
The sisters must band together to protect themselves, and the world, from the dark, demonic forces that seek to destroy them.