Piper & Leo,with help from Coop's ring,must travel back in time to change the events that lead to the deaths of Piper's sisters and the manor's destruction.Billie realizes the truth in what her sister has become.
Forced to hide from Billie and Christy,the sisters find themselves stuck in the Underworld.Leo appears to Piper and offers demonic approval;Billie & Christy resort to summoning the Hollow to stop the Charmed Ones and the Charmed Ones do the same.
In an attempt to destroy the reputation of the Charmed Ones,Billie & Christy resort to trying to make the magical community see that the Halliwells only care about themselves.
Piper and Phoebe devise a plan to recover Leo. Meanwhile, Paige rescues her new charge from a Darklighter; Billie is forced to make an important decision.