When a neutral Danish merchant ship is forced to put into port after trying to evade British wartime contraband control, its captain becomes involved in a beautiful British Naval Intelligent agent's efforts to capture a group of German spies operating from a London cinema.

During World War I, a British farmer is abducted by the Germans to take the place of a spy about to be executed whom he closely resembles.

A humble girl's rise to fame.

Jerry Mason inherits the Hotel Splendide at Speymouth but is disappointed when he sees it is a quiet place with few permanent residents. Gentleman Charlie, a jewel thief arrives after a long spell in prison expecting to be able to dig up the pearls he had buried - only to find the hotel has been built on the site.

An ex army officer is forced to resort to a life of crime.

To celebrate their Admiral's impending marriage, his men stage a variety performance. Meanwhile Joe Crabbs attempts to win back his girlfriend from the Navy's boxing champion.