Two federal agents battle a gang that hijacks trucks carrying materials vital for the security of the country and sells them to foreign powers.
A newspaper publisher and his Korean servant fight crime as vigilantes who pose as a notorious maske...
A young heiress of an American gun factory is threatened by a masked man after her father was murder...
The evil and masked "Gargoyle" is sabotaging all of America's industrial plants. It is up to the Spi...
Prospector Henry Tolliver disappears and his son "Wild Bill" Tolliver comes looking for him.
A new town doctor arrives at the same time as local Indians needprotection from troublemaking looter...
Tom King Jr. seeks to discover who murdered his father, a Texas Ranger; the trail leads to a network...
Dick Tracy goes up against a villain known as The Ghost, who can turn himself invisible.
Prior to the United States' involvement in World War II, the masked vigilante Spy Smasher fights Naz...
A young girl journeys to Africa to find her father, an explorer who vanished in the jungle.
Mystery and adventure, surrounding a stolen rubber harvest.
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.
Kit Cardigan seeks the killer of his father...among other plot threads leading up to the famous hist...
A bunch of waterfront youths pursue the Sea Raiders, a gang of saboteurs.
A Secret Service agent seeks his missing brother in Africa, and finds his mission complicated by ivo...
A Martian invader crashes his spaceship conveniently close to the workshop of a scientist who is dev...
Claire Forrest seeks her kidnapped scientist father, hidden somewhere on Mystery Island. He is hel...
Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth....
Dr. Mabuse and his organization of criminals are in the process of completing their latest scheme, a...
Government agents work to interfere with schemes to trick the Comanches into war with the Texans.