A hapless fire crew are given the ultimatum: put out a fire successfully or else be sacked. They fail miserably, and their ancient fire engine is stolen by criminals attempting to steal the crown jewels from the Tower of London.

A disgraced school master, Benjamin Twist, is mistaken for a tough prison governor and assigned the charge of a prison for particularly hardened criminals. Believing he is being sent to a school rather than a prison, he celebrates accordingly only to find that his drunkenness accidently lands him on the wrong side of the prison bars. The Governorship is eventually restored to him, and he sets about popularising himself amongst the convicts by turning a blind eye to their shady dealings.

Turnbottom Round prides itself as the village without crime; there has not been an arrest recorded by the local police for years. Unfortunately, this is more to do with the inability of Sgt Dudfoot and his constables Jerry and Harbottle to so much as recognise a crime. With their jobs on the line, the trio attempt to stage a crime of their own, only to inadvertently uncover a smuggling ring and a headless horseman...

A schoolteacher and his pupils visit Paris where they outwit a gang of crooks.

George Shuttleworth is convinced that he has the talent to win the Isle of Man TT races, despite what his neighbours back home in Wigan may think. During the trials, the brakes go on George's bike, 'The Shuttleworth Snap', which he made himself. As a result, he breaks the TT lap record, becoming an instant motor-cycling star. As the big race approaches, George soon realises that other jealous riders will stop at nothing to make sure he does not take part in the race. An early George Formby film and probably his best.

Nazi spies are out to destroy a new submarine killer, the "Firefly", being developed by the British navy. A hapless waiter named George, after being rejected for military service three times, finally "joins" when, during an air raid, he is mistaken for a real sailor. He soon unwittingly stumbles into the secret hideout of the Nazi spies trying to destroy the Firefly. Complications ensue.

The Crazy gang invade Nazi Germany !! They accidentally pilot a balloon over enemy territory.