Charmed: A Paige From the Past on AllMovie

Guided by Whitelighter Leo (Brian Krause), Paige (Rose McGowan) journeys back to her high school days, hoping to confront and overcome her guilt over the accident that killed her adoptive parents. In the process, Paige recalls her first awareness of her special powers. Meanwhile, back in the present, Piper (Holly Marie Combs) must stop the marriage between Phoebe (Alyssa Milano) and Cole (Julian McMahon) -- or rather, the marriage between the evil spirits presently possessing Phoebe's and Cole's bodies!