Mystery of the Riverboat

Filmed in the Sierra Nevada mountains near Sonora, California, this Universal serial is Universal's 40th sound-era serial. Eagle Scout Bruce Scott,...

Dr. Mabuse and his organization of criminals are in the process of completing their latest scheme, a theft of information that will allow Mabuse to...

A young newspaperwoman travels to a South Seas island to search for buried treasure.

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...

The evil and masked "Gargoyle" is sabotaging all of America's industrial plants. It is up to the Spider to save the country.

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...

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

A gang of Tripolitan pirates swooped down and kidnapped 13 wealthy brides, whom they held for ransom.

The 15 chapter story involves the heroine being protected by a shadow with burning eyes. There's also a cloak of invisibility, some hypnotism and a...

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 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...

Richard Grant, imprisoned in India for a crime he did not commit, escapes and makes his way to Africa.