Overview

Foreign powers keep getting their hands on U.S. military secrets, so the head of the American diplomatic corps calls in his nephew Dick Stansbury to help. Stansbury knows that Doctor Montell is at the bottom of this, so he poses as an inventor of an innovative aerial gun. This sparks the doctor's interest, and when they both attend a weekend party at the Ryerson estate, Montell tries to get Stansbury to sell the gun to his country.

Overview

Aviation action highlights this programmer which concerns foreign intrigue and a pair of WW1 buzz-boys developing a high-tech aircraft.

Overview

At a reception given for the vacationing Prince Zarl of Zorania, secretly the emissary of Zorania set on negotiating a treaty with the United States, Geoffrey Wynne, apparently a society dandy, but in reality a secret service agent, meets the prince. During the reception, Wynne is summoned to Washington where he learns that the treaty has been stolen and is being held for $15,000,000 ransom. Discovering that one of the thieves is an Italian named Farnelli, Wynne enlists the aid of his fiancée, Irene Mitchell, in apprehending the thief. Irene meets the Italian who offers to accompany her to New York. En route, Wynne overtakes them, chloroforms Farnelli and rips off his disguise to reveal Prince Zarl. Zarl then admits that he has stolen the treaty in order to cover his gambling debts.

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Feature film derived from edited episodes of the television series "Secret File, U.S.A."

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A spy wants to "come in from the cold" since his last assignment resulted in the death of two innocent people. But the service cannot let a man quit.

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A government agent with a photographic memory is assigned to solve the disappearance of an entire fleet of old Air Force planes. Pilot for short-lived TV series

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A veteran Russian spy is brought out of retirement to be sent to the West to do an important sabotage job. However, he finds himself falling in love with an attractive British double agent.

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At the outbreak of the World War, Janet Graham, a telegrapher, is persuaded by Eddie Delano, a crook masquerading as a salesman, to marry him. She agrees, but upon discovering his duplicity, she turns him over to the police. Janet enters the U. S. Secret Service and is detailed to uncover the source of a "leak" in the sailing of troop transports

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Exiled French patriot helps to find the men who want to betray emperor Napoleon III by selling military secrets to the German government.

Overview

Phillip Gresson is in the employ of the British secret service, while heroine Judith is a spy for the Enemy. Hoping to gain possession of the usual Secret Plans, Judith pretends to be in love with Phillip. Only after nursing the seriously wounded Phillip back to health does Judith come to the realization that she genuinely loves him.