Toisen maailmasodan loppupuolella Yhdysvallat ja Japani asettuvat vastakkain viimeiseen mittelöön. Atomipommit on pudotettu Hiroshimaan ja Nagasakiin, ja taistelu maalla on tauonnut, mutta merellä kamppailu on kaikkea muuta kuin ohi. Amerikkalainen alus on matkalla rannikolle lastinaan kolmas ydinpommi, joka on tarkoitus pudottaa Tokioon.

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.

It's May 1943, and two Italian American soldiers, Joe and Frank, are searching the North African desert for a Nazi general called Von Kassler. Von Kassler's aide captures them, and arranges for them to escape with fake war plans. But, things don't go exactly as planned for either side.

An inventor of a deadly weapon to be used against the allies is injured in a crash. Surgeon, Sir James (Sebastian Shaw) saves his life but learns of the inventors plot.

Espionage, intrigue, and passion surround the revolutionary invention of a secret weapon. A film that echoes with the world war, by German exiled filmmaker James Bauer.