A Secret Service agent seeks his missing brother in Africa, and finds his mission complicated by ivory thieves, a girl with a mysterious past, and a troublesome gorilla.
Filmed in the Sierra Nevada mountains near Sonora, California, this Universal serial is Universal's ...
The evil and masked "Gargoyle" is sabotaging all of America's industrial plants. It is up to the Spi...
The serial detailed the experiences of Kathlyn Hare, the pretty daughter of an explorer. Kathlyn res...
A bunch of waterfront youths pursue the Sea Raiders, a gang of saboteurs.
Disaster seems imminent when scientists discover that the planet Mongo is about to crash into Earth....
When a treasure hunter seeks a downed airplane in the jungles of Africa, he encounters one of the pa...
Buffalo Bill Cody battles a gang of outlaws secretly headed by an unscrupulous lawyer.
Prospector Henry Tolliver disappears and his son "Wild Bill" Tolliver comes looking for him.
Famed aviator Bruce Gentry is working with scientist Andrew Benson, setting out to uncover the origi...
An expedition enters an area of the Congo jungle to investigate reports of a gorilla-worshipping tri...
The nefarious Dr. Fu Manchu searches for the keys to the tomb of Genghis Khan, in order to fulfill a...
Jerry Blake (aka Federal Operator 99) teams-up with Joyce Kingston to thwart the plans of escaped cr...
An expedition arrives on an uncharted jungle island to rescue the local natives, led by a jungle boy...
Government agents try to thwart smugglers, while some sort of plot unfolds, about a hidden treasure ...
As a child living in Africa, Jill Young saw her mother killed while protecting wild gorillas from po...
The Hazards of Helen is an American melodramatic adventure film serial of 119 twelve-minute episodes...
This serial told the story of the diamond heir loom of the Stanley family.
Criminals steal a radium-powered tank from an inventor. His heiress and a government agent take up t...