The nefarious Dr. Fu Manchu searches for the keys to the tomb of Genghis Khan, in order to fulfill a prophecy that will enable him to conquer the world. His nemesi, Dr. Nayland Smith and his associates fight to keep the evil doctor from getting his hands on the keys. In 1943 the serial was edited together into a feature movie also called Drums of Fu Manchu.
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 ownership of it.
Jesse James wants to start a new life in a new location, but quickly finds himself wrapped-up in protecting townsfolk from the machinations of evil oilmen.
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 Snowden
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.
Government agents work to interfere with schemes to trick the Comanches into war with the Texans.
Government agents try to thwart smugglers, while some sort of plot unfolds, about a hidden treasure revealed by cursed coins.
Kit Cardigan seeks the killer of his father...among other plot threads leading up to the famous historical incident.
Pulp hero "The Spider" seeks to destroy all criminals. In this serialized adventure, he battles The Octopus, who intends to replace the government of the United States.
Mandrake and his team attempt to prevent "The Wasp" from stealing and using a new Radium invention.
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 to Los Angeles, accompanied by inventor/radio operator Bob Whitlock and Irene Blaine. Their journey is aided by Pal, a wolf dog.
An Indian rug is the key to the location of a lost treasure. When the rug's owner is murdered, it becomes a case for Forest Ranger Steve King
Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth. Luckily, heroic young Flash Gordon is on hand to lead an investigative mission into outer space and onto the speedily approaching planet. There, he and his best girl, Dale, who is along for the ride, learn that Ming, the devious ruler of Mongo, has purposely put the planet on a collision course with Earth, and only Flash can stop him.
A Secret Service agent seeks his missing brother in Africa, and finds his mission complicated by ivory thieves, a girl with a mysterious past, and a troublesome gorilla.
Sergeant MacLane of the Mounties investigates the disruptive activities of a bunch of troublemakers.
A bunch of waterfront youths pursue the Sea Raiders, a gang of saboteurs.
A new town doctor arrives at the same time as local Indians needprotection from troublemaking looters.