Gabriella Wark returns to school to find some students determined to make her life difficult. Hector finds an ally in Sue, while Allie feels unnerved as Vaughan and the boys get ready to visit Olga on her birthday.

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.