The Canadians have discovered a valuable substance called Compound X, which can cure infantile paralysis. When a country at war with Canada learns that Compound X also contains magnetic properties that could aid them in their warfare against the British, they send agents to infiltrate Canada and steal a large quantity of the substance. It's up to Sgt. King (Allan Lane) and his Mounties to track down the agents and put an end to their scheme.
Yukon Territory, Canada, November 1931. Albert Johnson, a trapper who lives alone in the mountains, ...
In 1840, Sam Lash heads west for adventure. He meets up with some Mountain Men, and they head for th...
Elmo finds himself in 18 different hair raising and dangerous adventures always escaping in the nick...
Mr. Lincoln's tremendous physique fits him especially for serial work, where strength and daring are...
An Indian rug is the key to the location of a lost treasure. When the rug's owner is murdered, it b...
The Phantom Rider helps Mary Grayson thwart a plot to steal her land.
The story of a boy, a dog, and a man. The boy discovers he is heir to a shipping line, and travels...
Sergeant MacLane of the Mounties investigates the disruptive activities of a bunch of troublemakers.
A Secret Service agent seeks his missing brother in Africa, and finds his mission complicated by ivo...
A new town doctor arrives at the same time as local Indians needprotection from troublemaking looter...
In 1896, three survivors of a whaling ship-wreck in the Canadian Arctic are saved and adopted by an ...
Roberts and Moore played an army scout and a pony express rider who come to the aid of settlers terr...
When Pegleg and his Black Raiders threaten the westward expansion of the United States, the governme...
Daniel Robin has become mixed up with a band of criminals known as "the 13," and is shot when he ref...
Stock-footage from Republic Pictures' earlier Zorro serials was served up once again in this 12 chap...
Famed aviator Bruce Gentry is working with scientist Andrew Benson, setting out to uncover the origi...
Northern Patrol was the last entry in Monogram/Allied Artists' off-and-on "Northwest Mountie" series...