The Honeymoon's Over

After being gone with Leo for the past month, Prue and Phoebe wonder if Piper will ever return. While reading through the Book of Shadows, the sisters discover that the ones sending all the demons to attack them are working for a group called the Triad. Later, they come to Darryl's rescue when a mortal man who is protected by a demon tries to kill him. However, the sisters have to lie about to the assistant D.A. Cole Turner in order to keep their secret safe, and as a result, the man is set free. Cole has his own secret that he uses to get rid of the demon. Upon Leo and Piper's return, they realize unless they trick the Elders, they can no longer be together.