Clark Comstock

Fired for crashing his aeroplane into his employer's ranch, Tom Mix is elected sheriff in a town with, as a title stated, "a high mortality rate among sheriffs." Mix, of course, prevails against almost impossible odds, at one point cornering a gang of cutthroats holding leading lady Dorothy Dwan captive in the crater of a volcano about to erupt.

Miners Bucky Malone and Pierre Le Grande are closing their northern mine for the winter when Sergeant McClellan of the Mounted Police overhears their trivial quarrel; later, he sees Le Grande's dogsled arrive at its destination without Le Grande. McClellan finds evidence that Le Grande has been murdered and suspects Malone; attempting to make an arrest, the sergeant is wounded, then carried to a cabin by Malone, who goes to the settlement for a doctor. There he meets Le Grande's daughter, Joan, and Dr. Chambers, a disbarred physician, but a blizzard keeps the doctor from making the trip; ultimately, however, Joan and the doctor follow Malone to the cabin.

Dance-hall girl Dolly Wall invests her life savings in an oil well. A gusher comes in, enriching not only Dolly but her ne'er-do-well socialite sweetheart Royce Wingate. While Wingate hobnobs with the Upper Crust, poor Dolly is left home alone, stigmatized by her "scandalous" past.

Bob Evans is the bashful foreman of the Denton ranch. He reads books and dreams of being a hero. He gets his chance when Gladys overhears Walling planning to smuggle stolen diamonds across the border. Finding Gladys' note, he sets out after Walling.

White Elk, a light-skinned Indian chief, incurs the enmity of Chief Black Panther, whom he prevents from looting a westbound wagon train. Although White Elk is betrothed to an Indian princess, he falls in love with Lucille Cavanagh, a white woman from the East. After her father, John Cavanagh, tricks White Elk into signing away the lands of his tribe, the young chief is condemned to be burned alive by Black Panther.

Outlaw Sam Hemp attempts to induce homesteader Lang Rush, faced with foreclosure due to drought, to rob the bank as restitution. The exchange escalates into a gunfight leaving Sam and his wealthy friend, Drayton, dead. Fleeing to the mountains and the refuge of a deserted shack near Singing River Lang prospects for silver. Another former homesteader, Bert Condon, trails Lang in the hope of collecting a $5,000 reward, but befriends the fugitive and assists in filing Lang's claim when he strikes ore. On his return to town, Lang rescues the sheriff's daughter, Alice Thornton, from Hemp's gang and defeats their leader, L. W. Bransom, in a fistfight. He then clears himself of the murder charge and wins Alice.

Bud Watkins loses his ranch and savings to gambling house proprietor "Gentlemen Jim" Slade. The Cocopah Kid, a notorious bandit, lures away Betsy Burke, Bud's sweetheart and the daughter of the local sheriff.