When Tad Wallace's act flops on Broadway, he joins a troop heading west. In a small town, they run into Jeffries who has just burned down the theater. When Jeffries kills Griswold, Tad has a plan to trap him by using the talents of Shakespearian actor Thorndyke.
Reporter Speed Morgan helps Flash Barrett escape from the police and this gets him into Flash's gang where he poses as a gangster. Flash and his gang head west guning for Bill Miller who failed to send some diamonds on to Flash. Speed hopes to bring Flash to justice but is in trouble when his true identity is revealed.
In the 1860s, Mary Marlowe defies her father's wishes to marry a British lord and runs away with clerk John Carlton as he heads West to make his fortune. Mary and John endure the difficult journey and settle into a small cabin, then face the hostilities of a cattle rustling gang, as well as the tragic loss of their only son. With Mary's help, John defeats the gang, which propels him to political power that, over the years, gradually erodes the once-happy marriage.
Ken Maynard's exceptionally intelligent horse, Tarzan the Wonder Horse, is the star of this western about evil cowboy Steve Frazer (Welch) who gathers horses for slaughter, whose meat is sold to pet food manufacturers. The wild horse Tarzan frees the doomed horses from their corrals, and Frazer convinces the Sheriff that Tarzan is a threat and can be shot on sight. Local cowboy Ken Benson (Maynard) and rancher Pat Riley (Kennedy) work together to clear Tarzan's good name and put Frazier behind bars for his evil deeds.
Canadian Mountie Mason is sent south of the border to look for a horse thief with only a watch chain for evidence. He befriends young Andy and when Calhoun hits Andy, Mason and Calhoun fight. In the scuffle Calhoun's watch with the missing chain is dislodged. Mason then sets out to bring in Calhoun and his gang.
A man known as The Drifter returns home to his cabin in the woods and winds up getting involved with an escaped convict, a gunfighter, lumber company rivals, mysterious family ties and murder.
Clint Belmet (Gary Cooper) is a bit of a firebrand and is sentenced to at least 30 days in jail, but his partners, Bill Jackson (Ernest Torrence) and Jim Bridger (Tully Marshall) talk a sympathetic Frenchwoman named Felice (Lili Damita) into telling the bumbling, drunken marshal that Clint had married her the previous night. Clint is released so he can accompany Felice on the wagon train heading west to California.
Western pardners Jeff and Cash find a baby boy in an otherwise deserted emigrants' camp, and clash over which is to be "father." They are still bitterly feuding years later when they own adjacent ranches. Bill, the foundling whom Cash has raised to young manhood, wants to end the feud and extends an olive branch toward Jeff, who now has a lovely daughter. But during a mining venture, the bitterness escalates. Is Bill to be set against his own adoptive father?
Cardsharp Jack Cardigan decides to go straight when he meets Doris Bradfield, but is forced to use his talents on behalf of her dad, whose land-grant title has fallen into the hands of Jed Harden through the gambling weakness of Bradfield's son Tom.
Western sheriff Bob Wells is preparing to marry Sally Morgan; she loves part-Indian Wanenis, whose race is an obstacle. Sally flees the wedding with hypochondriac Henry Williams, who thinks he's just giving her a ride; but she left a note saying they've eloped! Chasing them are jilted Bob, Henry's nurse Mary (who's been trying to seduce him) and others.
Mysterious bandit has been holding up express shipments from the ranches. The girl's father has a partner who is really the villain, saving the hero who of course is suspected of being the bandit.
While building an irrigation system for a Southwestern desert community, an engineer vies with a local cowboy for the affections of a rancher's daughter.
Don Cesar De Vega crosses swords with a vicious member of the Queen's Guard, and steals the affection of a young heiress. When the officer frames the young upstart for murder, Don Cesar fakes his own death and retreats to the crumbling ruins of the family castle he plots his vengeance.
Alone and unprotected in an isolated wilderness cabin, Ruth Jordan is discovered by three drunken brutes who begin to barter for her. In desperation, she appeals to Stephen Ghent, the least degraded of the desperadoes, promising herself to him if he saves her from the others. Ghent buys off Shorty with a chain of gold nuggets and knocks Dutch senseless. Ghent then sends Dutch off with Shorty and takes Ruth to the next town, where he forces her to marry him. During the 3-day ride across the desert to Ghent's gold mine, the idealistic Ruth learns that he is a man of rough passions.
Tex Sherwood has just come into possession of a valuable piece of land that will be irrigated by a new dam. Banker Holman knowing the deed must be registered the next day, offers a $50,000 reward for Tex's capture.