Mother Riley plays a nurse who was forced to volunteer for the Auxiliary Territorial Service. Mayhem ensues until she is able to prevent German spies from acquiring important documents.

When the City stockbroker firm of Macintyre & Son records a substantial yearly profit, its senior staff are each promised a £50 bonus. But their hasty plans for spending their windfalls are put in jeopardy the following morning, as a set of negotiable bonds are discovered missing.

A government agent is returning from France with secret blueprints that were stolen from his government. On the train ride home, thieves break into his compartment and murder him.

A comedy of mistaken identities aboard a cruise ship, in which several people are thrown together by the matrimonial magazine Get Together: Dick Holmes, a reporter looking for a story good enough to save his job; Betty Foster, hoping to investigate the man interested in marrying her aunt Emily; and Horace Godwin, the magazine's editor, who is trying to avoid becoming engaged to Penelope Hackworth-Pratt.