As the sheriff of a small western town, Autry sings his way into a relationship with Eleanor, a singer from a Chicago nightclub who earlier witnessed a murder.
In his film debut Ritter is sent to investigate miners being killed and their mines confiscated. The culprit is Evans and after Tex joins the gang, he is sent to kill two more miners. When Estaban is killed, Tex is put on trial for all three murders.
The Government sends Dean, Baxter, and Gordon to investigate a series of train holdups. Travis is behind the robberies and they are soon on his trail. When things get hot, Travis has a plan of double-crossing his own men that will enable him to keep not only his gold but also the money it is insured for.
A Professor has an invention that will bring down planes causing them to crash and Dawson is forcing him to use it on those carrying money. When Tim arrives to investigate he is mistaken for a noted outlaw. So he assumes that identity to force Dawson to make him a partner. But just as a plane bringing Tim help is arriving, his true identity is revealed and while he is a prisoner, Dawson forces the Professor to start his machine.
When a gang tries to rob Haldain, Jim and Walla Walla break it up. Haldain is carrying stuffed animals and Jim's suspicion that they are stuffed with gold is soon confirmed. The gang's boss is banker Cutting and he is after Haldain's gold. He also receives Jim's mail at his bank and changes one of Jim's letters to make it look like Jim is after the gold. His sends Haldain's daughter after her father thereby leading the gang to the secret gold field.
The arrival of the telegraph put Pony Express riders like John Blair and his pal Smoky out of work. A race will decide whether they or stageline owner Drake get the government mail contract.
The story is set in the British province of New York during the French and Indian War, and concerns—in part—a Huron massacre (with passive French acquiescence) of between 500 to 1,500 Anglo-American troops, who had honorably surrendered at Fort William Henry, plus some women and servants; the kidnapping of two sisters, daughters of the British commander; and their rescue by the last Mohicans.
Tom Evans is a young cowboy orphaned by a band of rustlers. Seeking revenge, Tom pretends to be a notorious ex-con and manages to worm his way into the gang in order to get the goods on the bunch.
Doran and the Sheriff have a scheme to bring in an outlaw gang. Doran is sent to prison so he and the gang leader Mitchell can break out. This gets him into the gang but he is in trouble when it's revealed he is working with the Sheriff.
Chet Kasedon is after the Indians hidden gold mine but Chief Moya will not reveal it's location. He has also hired mining engineers Gale and Mortimer to locate the mine. When Gale sees Kasedon's cruelty to Moya, he switches sides.
An old miner is ambushed by outlaws trying to steal the $10,000 he is carrying to start up a new mine. A passing cowboy comes to the miner's aid, but winds up getting blamed for the attack.