Based on the true story of Melbourne Johns, an aircraft factory foreman sent to France to prevent the Nazis getting hold of some vital equipment.

A professor teaching at a correspondence school discovers that a Nazi agent is trying to prevent a trade treaty being signed between England and South America.

In 1783 England, King George III appoints William Pitt only 24 years old, as PM. When members of Parliament refuse to take Pitt seriously, he calls for a general election and wins. Pitt works to reform England, focusing on rebuilding the navy while across the sea in France, Napoleon Bonaparte begins his conquest of Europe.

A night watchman is being bludgeoned, as a safe is cracked open in the offices of the District Food Controller. A list of wartime foods to be rationed is stolen, and the police fear gangsters are planning to sell the foods on the black market. As the office charwoman, Old Mother Riley's fingerprints are all over the safe, and she becomes the police's number one suspect. To prove her innocence, Mother Riley turns detective, adopting various methods and disguises to track down the villains.

The Theatre Royal is a struggling London venue battling to keep its doors open. When the bank threatens to close it, the workers fear that they will soon be forced out of their jobs. The Royal's property master, Bob Parker (Bud Flanagan), recruits the rest of the staff to stage a benefit gala. They hope their show, featuring songs and dances, can raise enough cash to stave off the end. Meanwhile, they seek investors who can keep the Theatre Royal and its staff in business permanently.

A demobbed serviceman finds that his village has fallen on hard times. With the help of family, friends and the villagers he enters his boat in a yacht race. Winning will mean orders for new boats and life for the village.