A British merchant ship is torpedoed by a German U-Boat and takes shelter in a neutral port. The Captain then strikes back at the German enemy.

It's war time London and the Crazy Gang (Flanagan & Allen, Nervo & Knox, Naughton & Gold) are doing their bit for the war effort by running a fish and chip stall using their platoon's barrage balloon for advertising. Their Sgt Major is not happy about this and orders them to take the balloon down, but a freak heavy wind accidentally carries the gang away to Nazi Germany. They are captured and placed in a detention camp where they meet an elderly prisoner named Jerry, who possess a map for the location of a secret weapon which will win the war! Fortunately Teddy Knox's impersonation of Hitler lands him the spot of pretending to be the Fuhrer at a gala dinner and the gang are allowed out of the camp. However the Nazis have other ideas for their substitute leader.

Storyline Roger Henderson, the young son of a wealthy British gentleman, lives in one of those grand British country estates surrounded by huge gardens. When a Rembrandt painting is stolen from the vault in the basement of the mansion, Roger and John Wilson (young son of the butler) discover a secret tunnel leading from the vault to another building on the estate. They then set out on a dangerous mission to bring the smugglers to justice.

Generational family struggles for control of a family business in 19th century Yorkshire, and to be the Master of Bankdam.

Edgar is unhappily married to rich Clare. He plots with his mistress Stella to kill Clare, as she refuses to divorce him and gives him little money. However, it is Edgar who is found murdered, and Clare has to stand trial to prove her innocence.