The Stolen Treaty(1917)

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

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

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.

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.

The Delphi Bureau is a top-secret spy cadre answerable only to the U.S. president. The organization may have just one field operative, a supposed researcher named Glenn Garth Gregory. He gets his orders from an in-the-know Washington, D.C. socialite, and he relies on a resource that makes him a one-of-a-kind asset: his photographic memory. This adventure-packed, tongue-in-cheek pilot sets the pace and style for the 1972-73 series it launched. In it, Gregory sets out to find who's behind the disappearance of jets, tanks and other surplus weaponry. He'll be variously hunted by an assassin, tossed in jail for murder, half-buried inside a grain elevator and forced to cling to the undercarriage of a tractor while the driver tries to shred him under its tilling blades. One breathless escape after another invariably seems to land our hero in another jam.

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.

The wife of a jet-set millionaire takes a holiday in Berlin and poses for racy photographs. These are stolen, a man is killed, and she decamps to the French Riviera with a different photographer, who may also now be in danger.

G-Men in Washington break up a powerful spy ring and capture the ringleaders.

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

A German spy who is married to Lillian, the sister of Rosie O'Grady.

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.

Yankee soldiers-of-fortune smash a spy plot aimed at seizing Hong Kong.