In this episode, Derek finally crashes the preps' party, much to the DIKs' general satisfaction, but triumph turns to tragedy when they arrive back to their mansion to see it completely trashed by the vengeful... jocks. Taking one thing at a time, Peter heads out to Bella's place to make peace with Cathy, still traumatized over her leaked photo, and smoothtalks her into calming down and even offering him some lip service on their way back home. After that, it's back to Bella and Jill, where Bella gets nostalgic and reminisces about her own misdemeanors during her sorority days.