In Red Gulch Tom is married to Nell and has a daughter. He is shot by cardsharp Jim, who runs off with Nell. The little daughter, found wandering on the prairie by two wolf hunters, is adopted and named Prairie Nell. Fifteen years later, she is the pride of Bar X, when Tom returns, shoots Jim, and finds his 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.
When Bill Croft, a notorious gunfighter, is bushwhacked, innocent rancher Frank Douglas is accused of the crime on circumstantial evidence and sentenced to be hanged. Jack Douglas, Frank's son, sets out to prove his father's innocence with the help of Jean, the murdered man's daughter; Jack eventually apprehends the killer and forces him to confess, but the sheriff is unable to stop the execution without an official pardon.
Two men claiming to be scientists arrive in Arizona looking for Blair, a fellow scientist who disappeared while developing a death ray. The men hire Jim Wilson, who finds Blair living with his daughter on a ranch in an inaccessible valley near the Grand Canyon, where the scientist is testing his ray on birds and wild animals.
Oscar has been sent to the plains to make a man of himself, is soon visited by his sister Sybil Estabrook, who travels west along with her maid in tow. Oscar, who has been losing at cards to Victor Dufresne, is forced by him to rob a stagecoach in order to pay off his gambling debts.
Caught by the Piutes, pony Express Rider Dick Carter falls in love with pretty Dorothy Earle, who belongs to that seemingly endless supply of white girls kidnapped in childhood and raised by Indians. Unfortunately, Dorothy is promised to Bud Osborne, described in a title as "a renegade white who dominates the simple minds of the savage horde." Does Dorothy succeed in taking her own life rather than face an uncertain future with evil Bud? Or does the stalwart Dick rescue her in time?
When Bob Smith brings in the outlaw Bob Moore he learns his real name is also Bob Smith. With his sister whom he has not seen since childhood arriving, Moore gets Smith to pose as him. The masquerade works fine for a while but then Moore's gang members plan to kill him and Smith must save the brother of the woman he now loves.
The foreman of a ranch owned by a pretty young girl captures a herd of wild horses, but the herd's lead horse manages to break them free. The foreman blames a drifting cowboy, Yak, for the break-out. Yak, however, seems intent on provoking a confrontation with the foreman at every opportunity--and, as it turns out, for good reason.
John Shefford is looking for his uncle Venters who years ago found a hidden valley and lived there with Jane Withersteen and young Fay Larkin. He finds Kay, now grown, who tells John that Willets and his men got into the nearly inaccessible valley and she has agreed to marry him to save the lives of the other two. John and Fay head for the valley with Willets and with his men right behind.
After crashing his plane in the wilderness, a young airborne forest ranger is nursed back to health by a mountain man and his pretty daughter in this 18-chapter serial from Universal.
A professional boxer known as "Smiling Bill Flannigan" accidentally kills an opponent in the ring. He gives up the sport and heads west. He gets a job on a ranch as a cook, and before he knows it he finds himself involved in a war between ranchers and sheepherders.
Prospector Jack Remsen has hit a mother lode of hard luck: He can't pay the mortgage on his mine, and the skinflint repossessing it demands Jack's beloved horse as an additional penalty. When Jack angrily rides off on his own horse, he's branded a thief and hunted by the law. Although a wanted man, Jack remains in the territory because of his promise to look after the daughter of his late mining partner. The young beauty Jack thinks is his partner's daughter is actually the daughter of Jack's bitter enemy, the skinflint!