Katie is surprised when B.J. admits to being Byron Glass, but is soon creeped out when he forces her to don her old prom dress so they can share a dance. Mike realises that Henry tricked him and locked him in the cellar, and busts out to demand to know where Katie is. Maddie defends Casey after Gwen rips into him, and Gwen offers Maddie some advice concerning Casey. Meg tries desperately to tell Dusty the truth about the baby, but he keeps stopping her until she finally decides to keep her secret. Paul has a nightmare about Jennifer learning the truth. Source: tv.com (thetvdb.com)