The Great Radium Mystery

A young boy and a girl with a magic crystal must race against pirates and foreign agents in a search for a legendary floating castle.

Greedy traders have kidnapped a researcher, hoping he will reveal the location of a treasure in a hidden village. Family and friends of the researcher come looking for him. Adventure ensues.

Congo Bill is hired to locate an heiress lost somewhere in Africa.

Tom King Jr. seeks to discover who murdered his father, a Texas Ranger; the trail leads to a network of Axis spies.

The British Secret Service sends agent 006 to Cairo, to collaborate with an American colleague in searching for a stolen anti-radar device, but soon finds the task a bit more than he bargained for.

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.

Calvin Drake employs a group of low-lifes to drive away land owners along the path of a new railroad; Red Ryder opposes this strategy.

The forerunner of all serials, What Happened to Mary was a series of twelve monthly one reel episodes, each a complete entity in itself, revolving its immediate dramatic and melodramatic problems within the framework of a single episode and designed more for story and suspense situations than action.

Originally written for Pearl White, this silent serial is a great action-packed adventure starring Molly King and Leon Bary. This serial had fifteen chapters, each one two reels in length. The chapters were: 1. The Lady in Number '7' 2. The Masked Stranger 3. An Hour to Live 4. Kidnapped 5. The Life Current 6. The Dead Come Back 7. Into Thin Air 8. The Stranger Disposes 9. When Jail Birds Fly 10. The Hole-in-the-Wall 11. Love's Sacrifice 12. Riddle of the Double Cross 13. The Face of the Stranger 14. The Hidden Brand 15. Mystery of the Double Cross.

Lure of the Circus is a 1918 American adventure film serial directed by J. P. McGowan.

A variety of people are searching for a long-hidden treasure somewhere on an island. Chapters: 1. The Isle of Fear, 2. The Ghost Talks, 3. The Phantom Duel, 4. Buried Alive, 5. The Girl Who Vanished, 6. Trapped by the Flood, 7. The Cannon Roars, 8. The Circle of Death, 9. The Pirate's Revenge, 10. The Crash, 11. Dynamite, 12. The Bridge of Doom, 13. The Mad Flight, 14. The Jaws of Destruction, 15. Justice

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

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 obsessive scientist Dr. Miller is working on a matter-transmitter invention called the Paratron; a conspiratorial team of spies and no-goods pursue him to Alaska, trying to steal the device.

Dusty Bates observes some smuggled jewels hidden in a crate aboard a ship; he is pursued by low-lifes when the crate is put ashore.

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.

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.