A movie serial in 12 chapters: The famous comic strip character is on a mission to protect a secret tunnel passage between China and India.

A movie serial in 12 chapters: After gold is discovered in the town of Nugget, the titular band of thieves and cutthroats inundates the frontier settlement. A group of three compatriots -- upstanding ex-sheriff Jack Woods, his harmonica-playing friend Laramie and tricky, smooth-talking gambler Deacon -- combine their respective skills in a fateful struggle to deceive and disarm the gang.

A serial in 12 chapters. Tarzan goes to Guatemala to find his lost friend, D'Arnot. On the way he helps Major Matling search Mayan ruins for hidden jewels and an idol containing the formula for a powerful explosive. D'Arnot and the idol are rescued, but the idol falls into the clutches of the explorer Raglan.

15 chapter adventure serial: 1. Facing the Crisis 2. Vanishing Diamonds 3. Woman of Mystery 4. Haunted House 5. Perils of the City 6. Cipher Message 7. Bandit Raiders 8. Impostor's Scheme 9. Falsely Accused 10. Path of Danger 11. The Abduction 12. The Trial Run 13. The False Summons 14. Black Treasure 15. Retribution

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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.

Irrepressible Helen Rhinelander, the daughter of a railroad president. A dastardly villain, Segrue, however, desires not only Helen but also the plans for a new railroad. Happily, Helen's childhood sweetheart, Paul Storm, now an engineer, is right there to protect the damsel-in-distress through the serial's 15 exciting chapters.

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.

Movie serial directed by George B. Seitz.

A young heiress of an American gun factory is threatened by a masked man after her father was murdered. This criminal might be a member of her family or a German agent, who wants to get information about the factory's products, perhaps his mystery has a combined solution - we will probably never know...

After crashing his plane in the wilderness, a young airborne forest ranger is nursed back to health by a mountain man and his pretty daughter in this 18-chapter serial from Universal.

In Up and Going, based on Mix's own story, Arctic Trails, the star played a titled, polo playing Northwest Mounted Police officer. From an elderly woman, Tom learns that childhood girlfriend Jackie McNabb is being kept prisoner by evil Basil Du Bois.

Japanese spies attempt to subvert America's war effort; G-Men attempt to thwart their plot.

A mad scientist named Dr. Satan plots to steal key pieces of technology to enable him to build an army of robots based on his prototype to conquer America. The only one standing in his way is Bob Wayne, who fights Satan as the enigmatic Copperhead. Mysterious Doctor Satan is a 1940 film serial named after its chief villain. Doctor Satan's main opponent is the masked mystery man, "The Copperhead", whose secret identity is Bob Wayne, a man searching for justice and revenge on Satan for the death of his step-father. The serial charts the conflict between the two as Bob Wayne pursues Doctor Satan, while the latter completes his plans for world domination.

Madge Clayton, a society girl, mysteriously disappears. The police suspect a master criminal is behind the girl's abduction, but her brother, Bob, and fiancé, Bert Moore, help with the search. They unearth a scheme to kidnap another girl, Natalie Van Cleef, and the evidence takes Bob and Bert to an estate on Long Island.

In Africa, a deceased medical missionary's daughter in Africa carries on her father's work. Before long, she finds herself in danger from crooks and a local witch doctor.

A lady reporter and two college students search for the "Gold Special," a train that disappeared without a trace.

A wealthy young athlete comes to the aid of a beautiful heiress, whose fortune is being threatened by two arch villains, The Great Master and Doctor Zulph.

Prof. Millard pretends to be dead and helps Jeff King ferret out Vulcan, the evil traitor at the science academy. Donning his Rocket Man costume King goes from one hair raising rescue to the next in order to keep the newly invented Decimator out of the clutches of Vulcan and his minions.

A gang of land-grabbers tries to prevent safe passage of the Foster Stage Company through frontier territory.