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,...

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

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...

Buffalo Bill Cody battles a gang of outlaws secretly headed by an unscrupulous lawyer.

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

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 movie serial in 12 chapters: After gold is discovered in the town of Nugget, the titular band of thieves and cutthroats inundates the frontier...

A beautiful young woman is a daring master thief. She meets the young millionaire Thomas Babbington Norton, while fleeing from the scene of her...

Professor Campbell's expedition into the hills of Libya obtains a papyrus which might reveal the hiding place of the Golden Tablets of Hippocrates,...

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

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...