The fourth form monsters' latest trick is their best ever – they have burned down St Trinian’s school! As the girls stand trial, the police breathe a sigh of relief, but miraculously the judge's infatuation with a student means the school is freed. For the authorities, it means a new reign of terror as the girls of St Trinian’s regroup with gleeful anticipation.
During World War II, a Royal Artillery officer is assigned to an anti-aircraft battery that is filled with female soldiers of the Auxiliary Territorial Service. His wife who has enlisted is mistakenly posted to the battery in violation of regulations of husbands and wives serving together in the same formation. She becomes jealous of what she perceives as him paying too much attention to the other Auxiliary Territorial Service women.
