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 lead an investigative mission into outer space and onto the speedily approaching planet. There, he and his best girl, Dale, who is along for the ride, learn that Ming, the devious ruler of Mongo, has purposely put the planet on a collision course with Earth, and only Flash can stop him.
A newspaper publisher and his Korean servant fight crime as vigilantes who pose as a notorious masked gangster and his aide.
A young girl journeys to Africa to find her father, an explorer who vanished in the jungle.
Government agents try to thwart smugglers, while some sort of plot unfolds, about a hidden treasure revealed by cursed coins.
This movie chronicles Jack London's epic journey from San Francisco to the Klondike gold fields in 1898.
Greedy traders have kidnapped a researcher, hoping he will reveal the location of a treasure in a hidden village. Family and friends of the researcher come looking for him. Adventure ensues.
The obsessive scientist Dr. Miller is working on a matter-transmitter invention called the Paratron; a conspiratorial team of spies and no-goods pursue him to Alaska, trying to steal the device.
Bud Taylor loves Mary Stoddard but is leaving for Alaska in search of gold, leaving a police-dog pup with her that he has named "Phantom." Wade Burton is anxious to win Mary and her father's money. Later, Wade follows Bud to Alaska and attempts to claim-jump Bud's gold strike, but is foiled by Bud and "Phantom."