A gang of bank robbers holes up at a cowboy's ranch. One of the robbers turns out to be his brother. After the brother is killed by the gang, the cowboy tracks them across the desert.

Jerry Hixon's ranch is being besieged by raiders so Ben sends for his friend Bud. When Bud arrives and finds that the outlaw Texarkana Pete has been captured, he buys Pete's clothes and posing as Pete joins the outlaw gang. But he is quickly in trouble when his masquerade is exposed.

It's time for the stagecoach race to win the mail contract and the only entries are Reden and Farrell. Reden's men kidnap Farrell's daughter and then force him to withdraw. Wally rescues Ruth, buys out Farrel, and enters the race himself. But Reden has his men planted along the course to make sure Wally doesn't win.

Horses are being stolen by a white stallion known as "The Phantom of the Desert." A cowboy sets out to find who's behind it.

During a rescue of Mary and her father, Bob Bartlett finds a good horse, which later causes him to be mistaken for Butch Coleson, a wanted outlaw. Wounded by a posse, Bob heads for Poker Flats hoping to capture Coleson for the reward.

Chasing the man who had caused the death of his sister, Jack Walsh rescues Mary Winters from the unwanted attentions of a drunk, and learns that she has been lured to Mexico by the false promises of an ex-prizefighter "Kayo" Mooney. The latter kidnaps Mary but Jack wins the showdown and Mary, and finds that Mooney is the man he was looking for.

Seeking his father's killer in Mexico, Jack Rowland falls into the clutches of Buck Lambert and his band of smugglers.

Having quit their old gang and gone straight, Bert Allen and Joe Kemp finally own their own ranch after three years, but Joe robs the Riverton bank of the Green River Dam payroll - using Bert's horse, gun and gloves and leaving behind Bert's hat.

Purchasing the Carney Carnival and Road Show, unscrupulous sportsman Martin Trask assumes he has ownership of Rex, the world's greatest trained horse, and its rider, Margie Smith. The girl releases Rex, flees from Trask in a runaway wagon, and finds shelter with young cowboy farmer Jack Merritt, with whom she falls in love.

Rex the wonder horse's owner is murdered by Joe Regan, the leader of a band of smugglers. RCMP Sgt. Jack Gordon has been sent to capture the villain. Rex vows vengeance on Regan and helps Gordon capture him.

Jed Campbell, a "skypilot," and Nanette, a dance hall girl, meet when each goes to rescue Rex, "King of the Wild Horses," from a trap.

It seems that an evil saloon owner not only wants this valuable steed for himself, but also its owner, the beautiful Mary Ellis. Enter honest gambler Jack Crosby, who wants to settle the score.

Human cowboy hero is teamed with Rex, King of Wild Horses, an ornery critter but a magnificent animal.

A forest ranger comes to the aid of his fiance and her father when a crooked rancher and his gang try to force them off their land.

A cowpuncher is out for revenge on the gent who seduced his sister into a dance hall by advertising for a school teacher and then finished her off before he blew town. Rex the Dog and Starlight the Horse do their part in Jack Perrin's victory over the villain and his assistant.

A Northwest mounted policeman leaves the service to seek revenge for his brother's murder.

When Montana cowpuncher Larry Benson, riding his horse Starlight and accompanied by his dog Rex, tied up at the hitching post in front of McAvoy's hotel in Dam, Texas, he had little idea of the extraordinary series of adventures that were in store for him, Starlight and Rex.

A returning war veteran who finds his father murdered and the family ranch in the hands of outlaws.

The Thunderbolt Strikes