The reunion is ending and it's time for prom. All the couples decide their futures and a surprise guest shakes things up.

The classmates have had it with Steve. Yvette tells Matt a surprising secret; Lana makes a shocking decision.

Mike and Steve confront each other while Heather's presence affects Lana. Matt and Yvette go on a revealing Hall Pass.

Steve tries to make amends with Mike. Justin and Deanna go on an overnight Hall Pass, while Sean reveals something personal.

Matt and Yvette's bond grows, Mike and Lana have a confrontation, and Kat asks Rob on a Hall Pass. More classmates arrive.

Classmates from J.J. Pearce reunite for their 20 year reunion; Kat comes out, Mike deals with his sex, Matt talks with Yvette.