Four flying G-Men protect America against enemy spies; one of the four assumes the identity of The Black Falcon, to befuddle the saboteurs even further.

A serial in 12 chapters. Tarzan goes to Guatemala to find his lost friend, D'Arnot. On the way he h...

Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth....

The nefarious Dr. Fu Manchu searches for the keys to the tomb of Genghis Khan, in order to fulfill a...

A movie serial in 12 chapters: After gold is discovered in the town of Nugget, the titular band of ...

Professor Campbell's expedition into the hills of Libya obtains a papyrus which might reveal the hid...

Japanese spies attempt to subvert America's war effort; G-Men attempt to thwart their plot.

A beautiful young woman is a daring master thief. She meets the young millionaire Thomas Babbington ...

Elmo finds himself in 18 different hair raising and dangerous adventures always escaping in the nick...

Eddie King goes up against a villainous circus owner in this action adventure which was directed by ...

A young heiress of an American gun factory is threatened by a masked man after her father was murder...

Adventures of an American Secret Service-girl in search of an important German secret during the war...

A movie serial in 12 chapters: The famous comic strip character is on a mission to protect a secret...

A lady reporter and two college students search for the "Gold Special," a train that disappeared wit...

The Perils of Pauline is a motion picture serial shown in weekly installments featuring the actress ...

The war lords of a potential enemy of the US has the spy ring, led by John Baroda, the Spy King and ...

The Daily Clarion hires detective story writer Steve Colt to investigate the deaths of a group of sc...

Hop Harrigan, a top Air Corps pilot, leaves the military and he and his mechanic, Tank Tinker, open ...