Secret Agent X-9

A superhero known as The Black Commando battles Nazi agents who use explosive gases and artificial lightning to sabotage the war effort.

A criminal mastermind known as The Crimson Ghost is out to steal a device called the Cyclotrode, which can short-circuit all electrical current on the...

Two expeditions are trying to reach the Lost City of Zoloz -- one headed by Professor Davidson, a scientist who wants to establish an archaeological s...

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 Phan...

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...

A group of street kids battle a terrorist gang led by a Japanese spy.

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...

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 worl...

Tarzan spurns the love of La, Queen of Opar. When he isn't trying to keep the Bolshevik Rokoff and Clayton (pretender to the Greystoke estate) from re...

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 Z...

The true story of Lord Francis Hope who inherits the Hope Diamond and marries showgirl May Yohe. Lord Francis Hope gambles away the family fortune and...

Story concerns a paper mill, a mortgage and the struggle to obtain the lost formula for making paper from seaweed. Star is given opportunity to introd...

The struggle over the Bellamy estate ends with Michael Bellamy accused of murder and killed on the way to prison, while his brother Abel Bellamy takes...

A movie serial in 13 chapters, and Lionel Atwill's final film: Following the end of WWII, war-monger Sir Eric Hazarias sets the wheel in motion for W...

Columbia's 33rd serial (made between "Jack Armstrong" and "The Sea Hound") was based on the character that first appeared in "Action Comics" No. 42.