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.

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.

A movie serial in 13 chapters: Some swampland becomes valuable, and various factions squabble over ownership of it.

A 12-episode serial in which Tailspin Tommy evades volcanoes, anti-aircraft shells, and time bombs as he foils a plan by corrupt profiteers to steal an island's oil reserves.

Mandrake and his team attempt to prevent "The Wasp" from stealing and using a new Radium invention.

Man-woman team of investigators uncover a gang whose mad scientist leader has developed an invisibility chemical and plans to build a mercenary army of invisible men.

An accomplished aviator sets out to locate treasure hidden by one of his ancestors. He encounters interference from various adversaries.

When a bank executive disappears, he is accused of stealing a fortune from the bank. But his daughter and her criminologist friend set out to find her father and clear his name.

When his father is falsely convicted and sentenced to die for a murder committed aboard ship, the man's son signs on as a crewman to discover the real killer and clear his father.

Jim Dorn endeavors to protect Jean McNain from a man she knows has committed a murder, Carter Snowden

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.

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.

Prospector Henry Tolliver disappears and his son "Wild Bill" Tolliver comes looking for him.

Reporter Brenda Starr and her photographer Chuck Allen get involved in a search for the loot from a payroll robbery. Cliffhanging action and adventure and a fair amount of comic relief follow them at every turn.

Miracles of the Jungle is a 1921 serial film

In this movie serial Professor Sturgess invents a miraculous engine which can draw unlimited power from the atoms of the air. When the professor is killed, his daughter and her fiance must fight to keep the secret of the power engine out of the hands of evil Weston Dore and his henchmen.

A 10 chapter cliffhanger serial made by William M. Pizor Productions. 1. Missing Men 2. Tongues of Flame 3. Swirling Waters 4. Out of the Night 5. Perilous Trails 6. Secret Passage 7. Division 8. Revenge 9. Pawns of Evil 10. The Hidden Treasure.

The manager of The Big Circus plots to marry the owner's daughter and gain control of the outfit.

Only Episode 7, "The Hooded Helper," of this 20-Episode Serial is known to survive. All other episodes are believed to be lost.