Daniel Robin has become mixed up with a band of criminals known as "the 13," and is shot when he refuses to do their bidding. His daughter Ruth, brought home from boarding school, reaches his bedside before he expires. He tells her that she will be given thirteen keys. Instructions will be provided with each key and, if she follows the instructions, she will eventually fully learn of her birthright. Many adventures then follow as Ruth attempts to solve the puzzle of each key and establish her true birthright.
Famed aviator Bruce Gentry is working with scientist Andrew Benson, setting out to uncover the origi...
In this movie serial Professor Sturgess invents a miraculous engine which can draw unlimited power f...
Evil Hassan slips back into his native land of Ahad and plots to overthrow his twin bother, Kasim, w...
An Indian rug is the key to the location of a lost treasure. When the rug's owner is murdered, it b...
The Phantom Rider helps Mary Grayson thwart a plot to steal her land.
The story of a boy, a dog, and a man. The boy discovers he is heir to a shipping line, and travels...
Sergeant MacLane of the Mounties investigates the disruptive activities of a bunch of troublemakers.
Jesse James wants to start a new life in a new location, but quickly finds himself wrapped-up in pro...
Government agents work to interfere with schemes to trick the Comanches into war with the Texans.
Before the outbreak of WWII, Nazi sympathizers plot to undermine America.
A movie serial in 13 chapters: Some swampland becomes valuable, and various factions squabble over ...
Mystery and adventure, surrounding a stolen rubber harvest.
Jim Dorn endeavors to protect Jean McNain from a man she knows has committed a murder, Carter Snowde...
Four flying G-Men protect America against enemy spies; one of the four assumes the identity of The B...
Pulp hero "The Spider" seeks to destroy all criminals. In this serialized adventure, he battles The...
Mandrake and his team attempt to prevent "The Wasp" from stealing and using a new Radium invention.
Only Episode 7, "The Hooded Helper," of this 20-Episode Serial is known to survive. All other episod...
An escaped criminal impersonates a Police Commissioner, causing no end of trouble to a determined Fe...
Dr. Ernst Grood , having already dominated the planet Ergro, now intends to take over the control of...