1. What Happened to Mary
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.
2. The Renegade
Town banker John Martin calls on Billy and Fuzzy for help in capturing the men that robbed his bank.
It has an average vote of 5 on TMDB.
3. Jungle Jim
Two safaris enter the African jungle intent on finding a white girl who is the heiress to a fortune. One safari, led by Jungle Jim, wants to make sure she gets the news that she is now a rich woman. The leaders of the other safari want to kill the girl so they can try to get hold of her inheritance.
It has an average vote of 4.8 on TMDB.
4. The Purple Monster Strikes
A Martian invader crashes his spaceship conveniently close to the workshop of a scientist who is developing an interplanetary craft. If the extraterrestrial Purple Monster can complete the rocket ship and return to Mars, he will be able to start a full-scale invasion of Earth. Good thing Craig Foster sets out to thwart the Monster's mission!
It has an average vote of 3.8 on TMDB.
5. The Monster and the Ape
A famous scientist invents a humanoid robot , so a greedy rival scientist plans to steal it for use in his criminal plans. His henchmen often kidnap a trained gorilla from the zoo, to aid in the schemes.
It has an average vote of 6.3 on TMDB.
6. Red Barry
A police detective is caught up in a plot to steal two million dollars in bonds.
7. Spell of the Circus
The manager of The Big Circus plots to marry the owner's daughter and gain control of the outfit.
8. Winners of the West
Beyond Hell's Gate Pass is territory controlled by a man who calls himself King Carter; he uses a variety of schemes to prevent the railroad from being built, for fear it will finish his control of his land.
9. The Great Alaskan Mystery
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.
It has an average vote of 5 on TMDB.
10. The Adventures of Dusty Bates
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.
It has an average vote of 4 on TMDB.
11. The Master Key
A movie serial from 1914
12. The Indians Are Coming
Jack Manning arrives in a midwestern town from Gold Creek in Califonia. He brings a message from Goerge Woods to his brother Tom Woods , in a dual role, and niece Mary who has a yen for Mary himself. Jack and Mary not only have to be wary of Carter's crooked ways and machinations, but also of Indian uprisings, caused by Carter.
It has an average vote of 4.5 on TMDB.
13. Nan of the North
A Canadian Mountie and a young girl team up to prevent an evil couple from finding a fallen meteorite that contains a powerful element called "Tilano."
14. Riders of the Plains
B-Western regulars Jack Perrin and Marilyn Mills starred in this obscure, low-budget Western serial released in 15 chapters.
15. The Vanishing Rider
William Desmond plays Jim Davis, a secret service agent by day and masked avenger by night. Ethlyne Clair provided feminine appeal, while Bud Osborne, as the notorious Butch Bradley, and a young Boris Karloff took care of the villainy.
16. Flash Gordon
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.
It has an average vote of 6.3 on TMDB.
17. The Secret of Treasure Island
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
It has an average vote of 4 on TMDB.
18. Deadwood Dick
Columbia's 11th serial and the first western serial that James W. Horne solo-directed.
19. Junior G-Men of the Air
A group of street kids battle a terrorist gang led by a Japanese spy.
It has an average vote of 6 on TMDB.
20. Drums of Fu Manchu
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.
It has an average vote of 6.1 on TMDB.