In the Old West Charles Garvin and Clarice Winslow are happily engaged. One day artist, Ed Gardner arrives seeking lodging and is welcomed into Clarice's home, where he meets the young cowboy. However, when Charles must depart for a round-up, Ed begins to charm Clarice, who seems amused by his company and a triangle develops.
A damsel-in-distress Western melodrama and a stirring picture of railroad construction and the mining country, with a Snidely Whiplash villain performing dastardly deeds, a spunky and gritty Polly Pureheart heroine and a brave Handsome Harry hero...and filled with action, romance, adventure, bravery...and perils.
Dan Melton is in love with Daisy Dale, who, being of a coquettish disposition, permits herself to become infatuated with Soapy Smith, gentleman gambler. Sheriff Melton is greatly worried by the continual holdups committed by Black Jack, a desperado, who has become the terror of the mountains. His excursions in quest of the bandit compel him to neglect Daisy somewhat. One day Daisy meets with an accident while riding and applies for assistance at a lonely shack in the hills. To her astonishment Soapy Smith opens the door. She accepts his invitation to enter. Once she is inside, however, Soapy betrays his real character and attacks her. Daisy's screams are heard by Morristette, a Mexican, who rushes in and intervenes. Smarting under the blow Soapy deals him, he gallops to town and informs the sheriff. On arriving at the shack to rescue his sweetheart Melton finds that Soapy Smith and the long-sought desperado. Black Jack, are one and the same.
Mollie Owens, engaged to sheriff’s deputy Dick Calvert, is taken captive by outlaw Monk Turgis and imprisoned in the "death cabin” so called because everyone shunned it after of two mysterious murders were committed there. Turgis and his friend try to scare money out of Mollie's mother, but Dick sets out on their trail. He sees one of them enter the cabin and immediately investigates.
Jeanne La Roche lives alone with her brother in the great northwestern country. Jacques is a ne'er-do-well and has fallen under the suspicion of the mounted police, two of whom are dispatched to arrest him for robbery. The stolen goods are found in his home. Jeanne is too young to be left in their lonely cabin, so she is taken to the post, where the wife of the proprietor welcomes her and gives her a home. Several years later, Donald McLean wins her for his wife. Meantime Jacques escapes from prison, eludes his pursuers and takes refuge in McLean's home.
Not realizing he is a bandit The Girl, owner of the Polka Saloon, falls in love with Ramerrez. Trapped by a snowstorm Ramerrez is forced to stay the night with The Girl. Upon discovering the situation jealousy drives dancer Nina Micheltorena to reveal his identity and whereabouts to Sheriff Jack Rance, who also loves The Girl. Ramerrez is shot trying to escape, and though she denies his presence she shelters him. Drops of blood prove lead to his discovery. Taking a chance The Girl wins both their freedom in a poker game with the sheriff. However incited by Nina, vigilantes are about to lynch Ramerrez when the sheriff interferes, explains his bargain, and restores him to The Girl.
The Northwest Mounties are after Cheyenne Harry for the murder of an Indian boy, and the only witness to the crime is a priest - who can't tell what he saw because the real killer, Black Michael, has confessed to him.
Secret Serviceman Allen takes a job at Bart Stevens' mine in order to find evidence proving that Stevens is a mail robber named Smoke Gublen. He does - but by then, he is in love with the man's sister - and to make things harder, Stevens saves his life...
Jim Blake, the playboy son of a New York millionaire, heads west to prove himself a man. He goes to work on his father's ranch in Wyoming, and eventually wins over the locals by turning the tables on a town bully and trying to collect damages from a railroad magnate, whose trains have killed many of the Blake ranch's cattle. When the railroad refuses to pay, Jim comes up with a plan that will make them pay far more than they originally had to. Problems arise when he falls in love with Alice, the railroad magnate's daughter.
Moran, blind to ambition, has been a long-time friend of the widow Casey. In his own way Moran likes the widow, but his strongest affection is for her young son. The boy, in turn, loves the man's friendship and the knife the man has given him. The time comes when the widow and Moran fight.
Johnson, a pharmacist, makes an illicit traffic in cocaine and morphine, which he cleverly sells through his drug counter to a select clientele. In his richly furnished office, the head of the Kurson Chemical Company counts the receipts of Kurson Consumption Cure, a patented drug that contains a large amount of morphine.
After years of scientific research Thomas Kellner, an eccentric chemist, succeeds in manufacturing an imitation diamond, with the help of his son Jack.
Morton, encouraged by Watson, who wants to expel him from the bank, is the president who uses the bank's money for his private speculations. He gets very involved and when the matter is brought to the attention of the directors, he is asked to oblige to the default or go to prison. Morton would commit suicide except for his stenographer, Mary Lane, a beautiful and intelligent girl. She takes him in and discusses the matter with Morton's son, whom she loves.
Returning to his father's cattle ranch after the excitement of serving in combat overseas, Bud McGraw becomes restless, and his father decides to send him to an old friend who commands the Border Police in Texas. On the way he meets Peggy Hughes, accompanying her Uncle Graham, a customs inspector, and he retrieves her hat from the rails of a train. At the headquarters, numerous scrapes and fights win him the admiration of, and friendship with, the men. Lazaro, a Secret Service agent, invites Mrs. Graham and Peggy, who are staying at the border station, for an automobile ride, and they are captured by bandits and held for ransom. Bud and his pals deliver the ransom and discover that Lazaro is the bandit chief. Lazaro refuses to release Peggy, but a jealous rival, Nita de Garma, causes his downfall and shoots him as the Border Police arrive to rescue the party.
On the rim of the desert The Brute runs a saloon with an iron hand which he also uses on The Woman. When The Man wanders in and wins at poker The Brute tries to fleece him of his winnings but loses everything when suddenly The Man catches sight of The Woman. He offers to stake his all on her and they play. The Man has four of a kind. The Brute has a gun. But The Man is a quicker draw and the pair escape across the desert. The Brute follows but when he is defeated in a showdown he wanders off into the desert to perish. The Man and The Woman embark on a new life.
Mining foreman Jimson is fired by Pedro and Madro when they falsely accuse him of trying to steal ore. When they attack him, he is forced to strike back, and they swear revenge. Their enmity intensifies when Jimson rescues Nina, a Mexican girl, from Pedro's unwanted attentions.
The manager of the American oil company quits out of fear of El Jaguar, the bandit who is terrorizing the Mexican countryside, Phil Jordan is sent in his place. Phil arrives with his younger sister Nancy, when the bandit makes a unwanted pass towards the girl, Phil beats him, causing El Jaguar to vow revenge. Waiting until Phil's bride Beth arrives, El Jaguar captures all three Americans and sadistically forces Phil to choose between leaving with his sister or his wife. Beth volunteers to remain as a sacrifice, and Phil and Nancy ride off, soon to encounter a troop of rangers. They all rush back to rescue Beth, but before they arrive, the bandit is killed by a woman whom he had abducted and violated on her wedding night.
Discouraged by the loss of his job and unable to find another young shipping clerk Clark heads west, promising his mother that he will send for her when he finds a decent job. Instead, he falls into bad company. Finding it hard to make money he first works in prospecting without success until finally securing a job in a mine.
Deputy Sheriff Martin of Arizona is in love with Lola a waitress at the Gold Dollar restaurant. However, complications arise when Martin encounters James Kinney, a wanted murderer working under an assumed name in the local mine. Deputy Martin discovers that Kinney is also interested in Lola, fueling a rivalry between the two men. During a mine accident, Kinney is placed in a dangerous situation and Martin must decide whether to act on his personal feelings or uphold his duty as a lawman.
Jeremy Dexter, Sheriff of Sherman County, warns Lanky Mason to leave town after being involved in a shootout the night before killing a Mexican. The sheriff tells Lanky that although he remembers that Lanky had saved his little daughter's life by swimming across a stream during a flood and that Lanky's heroic work during a time when the smelter caught fire had saved the town from destruction, it was imperative for the good of the town that Lanky leave.