The details are fuzzy but I remember:
A demon cast a spell or something to show everyones true forms. Phoebe and Cole's daughter turned into a demon, showing her belthazor stripes during the school prom, while Chris and Wyatt's huge white wings poked out. I think a witch hunter was after them or something. Darryl's son and Phole's daughter had a romance thing going on. Chris met another girl in their school who was also a whitelighter.
Pretty much everything else that happened is a blur.
Pleeeeeeeeeeeeeeeease someone tell me that they know this story and that it has not been deleted! Thank you (: