The Source breaks an ancient agreement between good and evil, and taps into an ultimate power source known as The Hollow. This all powerful vapor has the ability to consume the powers of any supernatural being, good or evil.
Season 4 Episode 13 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.