In World War II era Los Angeles, the manager of the Culver Hotel leaves his nephew in charge for a weekend. The nephew changes the name to the Hotel Rainbow and overbooks with royalty, assassins, secret agents, Japanese tourists, and munchkins. Secret Service agent Bruce Thorpe and casting director Annie Clark find romance amidst the intrigue and confusion.
Broadway gamblers stumble across a plan by Nazi saboteurs to blow up an American battleship.
A vaudeville performer returns from the dead to help his wife and daughter, who are being dominated by a greedy banker.
Ole discovers Nazi spies planning to take over the ship he's working on.
Lucky Jordan is a gangster living in New York City and when he's drafted into the army, he tries to escape duty by using an old con woman named Annie to convince the draft board he's needed at home. When that fails, Jordan is sent to boot camp, but he doesn't stay there long. He takes a beautiful USO worker hostage and flees back to New York. There, he learns that a rival gangster is plotting against America.
Allied spies and Nazi Agents insinuate themselves at a Scottish cottage (converted to a wartime hospital) with interests on an inventor's nearly perfected bomb sight.
The Stooges join the war effort by enlisting at Merchant Marines. While aboard, they have a brief run-in with (a secret German Nazi officer) Lt. Dungen (Vernon Dent), and then mistake a torpedo for a beached whale. Moe says they have to kill it, and it promptly explodes. After being lost at sea for several days, they come across the SS Schicklgruber and climb aboard. Now with fully grown beards, they come across Lt. Dungen again, who does not recognize them. After realizing they are on a German war ship they eventually overtake the crew and toss them overboard.
The Stooges are repairmen who get a job fixing the doorbell in large house which is the secret headquarters of some Nazi spies. They manage to ruin most of the house while working on the wiring and then subdue the spies and sink an enemy submarine by remote control.
The Lone Wolf tracks down Nazi spies in London during the German bombing.
Bank accountant Thomas Lieven is forced to work as a triple agent for the British, the French and the Nazis.
Government agent Dick Barton battles a ring of Nazi spies who are planning to poison the entire London water supply.
A homage to screwballs and mistaken identity films like The Great Dictator & North by Northwest, set in 1943. It's Cora Apple's birthday, and she gets surprise she never expected when her sisters (Seedy & Candy) accidentally swap her birthday package for the plans to the Manhattan project. Worse yet, the sisters are mistaken for the three undercover female scientists and get kidnapped by the Nazis. The Apple Sisters use their charm, wit, and dumb luck to escape the Nazis and save the world.
Balloon unit WAAFs catch German spies.
After escaping a Nazi POW camp, a young Scottish RAF gunner recounts his perilous journey through occupied France with the help of the Resistance. During his debriefing in London, French intelligence officers press him for details—especially about one companion whose true loyalties may not be what they seemed.
Archie Rice, an old-time British vaudeville performer sinking into final defeat, schemes to stay in show business.
Stephen Neale is released into WWII England after two years in an asylum, but it doesn't seem so sane outside either. On his way back to London to rejoin civilization, he stumbles across a murderous spy ring and doesn't quite know to whom to turn.
An American ballistics expert in Turkey finds himself targeted by Nazi agents. Safe passage home by ship is arranged for him, but he soon discovers that his pursuers are also on board.
A Nazi spy passes himself off as an optometrist in San Francisco's waterfront district. Someone robs him of his code book, and he must get it back.
The US Government tries to track down embedded Nazi agents in the States.
A Nazi spy ring is after a chemical formula that increases the power of ordinary gasoline for U.S. Army aviation use. Two U.S. chemical companies are developing the formula, with each working on half for security purposes. The spies get half the formula and know that either of two chemists, Robert Norton or Tom Fielding, knows the rest. They capture Fielding, through a ruse by gang member Linda Pavlo, and threaten the life of his sister Nancy and his mother if he does not give them the formula. To protect his friend Fielding, who does know the formula and is engaged to Nancy, Tom pretends to know the secret and boards the Dawn Express plane with the spy leader and his gang.