The Mysterious Rider

When a gang of outlaws put Andy Clyde's ranch house under siege, daughter Alice Day recruits college heart throb Ralph Graves to save daddy.

Johnny Arthur has been ordered to spend a year out west to toughen him up, so he and butler George Davis head out. The cowboys at the ranch don't like him, so Johnny and they play practical jokes on each other. However, when Virginia Vance is kidnapped, it turns out to be real desperadoes.

When wild horse Emma (Trixie the Horse) keeps opening the gates and freeing horses, ranch owner Molly (Molly Malone) hires Jimmie (Jimmie Adams) to deal with the problem. When he tames Emma, however, jealous ranch hands tie him up and kidnap Molly, so it's Emma to the rescue!

Arizona range rider Lon Gilchrist helps stagecoach passengers fight off attacking Apaches. After rescuing a baby and binding her bleeding forehead with his handkerchief, Lon receives a reward that allows him to buy a ranch. Many years later, the rescued child, Lizzie Mayberry, is a waitress in a cheap restaurant, where she meets Lon, who, now wealthy, courts and marries her. Because he is so busy, Lon has his friend Del Beasley look after her. After a misunderstanding, Lizzie has Del take her to the railway station. Thinking that they left together, Lon pursues them.

When the Great Chief's body is placed before the funeral pile by his mourning braves, his sacred blanket is covered over it and a sentinel left to watch that this, his last resting place, is not desecrated. The tribe has just departed for their village when a mountain outlaw appears and succeeds in stealing the blanket, having given the sentinel doctored whiskey. When the Indians discover this they exile the unfaithful sentinel until he can recover the blanket.

In Hell's Valley, Texas Ranger Captain Wally kills Jose Valdez, leading Jose's brothers, Carlos and Manuel, to seek revenge at the Flores ranch. Wally is wounded pursuing them but is saved by Rosita Flores, his original sweetheart's daughter, who nurses him but secretly seeks his torture for her father, and also for herself. Carlos and Manuel fall for Rosita, but she, in turn, falls for Wally, leading to Carlos accidentally killing Manuel and Don Flores killing Carlos, with Wally and Rosita's relationship solidified.

A native Californian guide is discharged by the leader of a wagon train because he dares to make love to the latter's daughter. Sometime later he comes upon them again and is in time to save the girl he loves from an attack by the Indians.

A minister and his young daughter Bess, journey west where he hopes to regain his health. They become involved with notorious outlaw 'Eagle' Ryan. The outlaw becomes influenced by the power of religion along with Bess's gentle persuasion, he is reformed from his life of crime and forgiven by all the townspeople.

Penny arrives in the West by aeroplane. She is considered a suspicious character and thrown into jail. Kurt Walters, a ranch foreman and deputy sheriff, discovers that she is the same girl that his friend, Jo Gary, met in Chicago. Gary fell in love with her, but she confessed she was a thief. Since Penny claims she wants to reform, Walters releases her and sends her to live with Mrs. Kingdon. In spite of her teasing and taunts (or perhaps because of them), Walters finds himself falling in love with Penny.

A sheep farmer brings his new wife to his father's ranch and the old man takes an instant dislike to her.

A notorious gambler and card cheat, George Forrester, rules a little western town with an iron hand. The men of the town plot to catch him cheating and do, but his men save him from danger. In the same town lives Gerald Austen, or Aitkens, who had left his tyrannical father in the east and made good in the west.

Sheriff Jefferson Mosby is sent to Cactus Flats, Nevada, to combat outlaws harassing local homesteaders. After discovering the town's mayor is leading the criminals, Mosby uses disguises to infiltrate the gang, capture them, and restore order with the help of residents Molly and Danny.

A dying prospector tells "Peters the Pacific" about a mine he has discovered for "the mate's girl" and the ambush he has been set upon by mine jumpers, and gives Peters the location of the mine. In town, Peters uncovers the corrupt dealings of a dance hall owner, Jim Blalock, and Peter Hunter.

Esteban, a white boy, is raised by an Indian squaw, who believes she is his mother and from whom Beaugard steals the papers documenting Esteban's birth and his right to inherit a ranch. When he grows up, Esteban falls in love with Patricia Benton, Beaugard "exposes" Esteban to Patricia, and the villain taunts the boy, telling him that he has no right to a white woman.

While in Europe, Chaddie Green, a society girl, discovers that she has been left penniless. She returns to the United States and meets Duncan MacKail, who is equally broke though he owns grainland in the West. Duncan and Chaddie are married and go west to homestead. Duncan hires Ollie, a Swedish caretaker, who frightens Chaddie. When business takes Duncan away, Chaddie goes to take care of Percy Woodhouse, an Englishman who has become ill at his place fifteen miles away. Her horse runs away, and she is forced to spend the night there. She sleeps under a wagon, but Duncan is nevertheless angry and jealous.

In Oklahoma, kindhearted outlaw Brick Willock rescues little Lahoma Gledware and her father Henry from certain death at the hands of his outlaw band. In the course of the rescue, he kills Kansas Kimball, the brother of the outlaws' leader Red Kimball, who vows vengeance against Brick. Brick renounces his life of crime, and after Gledware relinquishes custody of his daughter to marry an Indian princess, the old cowboy gives refuge to the little girl, raising her with the help of neighbor Bill Atkins.

Claim jumper Dave Marco and his boss Earl Foster, a crooked investment broker, hire chemist Ralph Brandon to falsify papers that a certain worthless mine is valuable then convince Ralph's mother to invest all her money in the mine. Ralph’s sister Holly meets Jack Mason, whose mine is actually valuable though not yet profitable, and they fall for each other. Once Mrs. Brandon finds out she has been duped, though forced into silence by the threat of having Ralph’s malfeasance exposed, and Marco attempts to jump Jack’s claim events come to a head until the happy conclusion.

Professor Duane, an ethnologist, and his assistant, Roscoe Harding, plan a journey into the wilds of Hindustan. Harding is in love with Lydia, the daughter of Professor Duane, and they are engaged to be married. Lieutenant Tavish, a British army officer, is attracted to Lydia and plans to take her away from Harding by fair means or foul.

Evelyn Nelson portrays the character Frances Powell in this story that centers on themes of justice and personal vendettas in the old West.

Campbell is disgraced and removed from the service. He saves the girl who was being carried off and rounds up the crooks.