After Justin sees a boy shoplifting, he takes matters into his own hands and tries to help. When his actions don't get the response he was expecting, things spiral out of control. Simon and Sue's dinner party goes badly wrong after Hector speaks out of turn.

Allie convinces Vaughan to send Justin to a boarding school in an attempt to keep him away from Tiffany but the young lovers have plans of their own. Darren isn't happy when Rhiannon considers a career as a plus size model.