Broadway gamblers stumble across a plan by Nazi saboteurs to blow up an American battleship.

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.

Captain Crowther's lot is not a happy one! Five of his crew have to be replaced and at such short notice before the voyage begins there isn't much to choose from. Not only does he get the five most incompetent shipmates ever to sail the seven seas, but the passengers turn out to be a rather strange bunch too. The SS Happy Wanderer will never be the same.

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.

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 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.

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.

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.

Larry Haines, a mediocre vaudeville entertainer, boards a train for Los Angeles. Aboard, he meets an attractive, blonde British agent carrying a coded message hidden in a brooch—and is being pursued by Nazi agents.

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.