Humble stamp dealer Otto Becker has little to do with international politics, so when he receives a surprise visit from his estranged twin brother and Nazi spy, Baron Hugo von Detner, his world is thrown into turmoil. Threatening Becker with deportation, Hugo forces him to use his shop as a front for espionage.
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.
FBI agents Carl Becker and John Trent raid a New York hotel, sending Nazi spies to an upstate hunting lodge.
Government agent Dick Barton battles a ring of Nazi spies who are planning to poison the entire London water supply.
The obsessive scientist Dr. Miller is working on a matter-transmitter invention called the Paratron; a conspiratorial team of spies and no-goods pursue him to Alaska, trying to steal the device.
Great Britain, 1944, during World War II. Relentlessly pursued by several MI5 agents, Henry Faber the Needle, a ruthless German spy in possession of vital information about D-Day, takes refuge on Storm Island, an inhospitable, sparsely inhabited island off the coast of northern Scotland.
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 small-town reporter investigates a mysterious group holed up in a country lodge.
The British Army, retreating ahead of victorious Rommel, leaves a lone survivor on the Egyptian border who finds refuge at a remote desert hotel. He assumes the identity of a recently deceased waiter and is helped by the hotel's owner, despite protest from the French chambermaid, who fears the imminent arrival of Rommel and the Germans.
Broadway gamblers stumble across a plan by Nazi saboteurs to blow up an American battleship.
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.
A young, Scottish RAF gunner is debriefed by French officials about his escape from Nazi-occupied territory. They are particularly interested in one person who may or may not have been a German agent.
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.
Discovering Paris under the German occupation through the story of an SS soldier and more generally of Wehrmacht soldiers allows us to follow the daily life on the German side. These soldiers enjoyed privileged status, during their stay, they were led to believe that they belong to a social elite, a status unreachable back in Germany during peacetime. And who better than a German who has led such lifestyle to serve as a common thread and tell this story?
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.
A beautiful Austrian refugee in England--who is also a Nazi agent--marries a scholarly English pacifist. He lives near a secret military base she needs to get information about so she can help in Hitler's planned invasion of England.
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.
FBI agent Ed Renard investigates the pre-War espionage activities of the German-American Bund.
The Lone Wolf tracks down Nazi spies in London during the German bombing.