The Diamond Master

Ranchmen try to play a joke on one of their associates by signing his name to a letter addressed to Sarah Smith, who has advertised in a matrimonial journal. A mix-up occurs on the day of the arrival of the lady when a younger woman, sent to buy stock, also appears on the scene and is mistaken for the prospective bride.

Dolly Mainard, en route to her father, a major at Fort Blaine, is escorted through dangerous Sioux territory by a cavalry detachment and Army scout Jim Cardigan. When Captain Blackwell offends some braves of Chief Gray Wolf's tribe, Jim is sent ahead to the Indian camp to ask for peace. Imprisoned by the Indians, he sends a message to Blackwell not to advance; Donlin, a renegade scout, tears the note in such a way that the message is distorted, and the entire force is killed. When Jim escapes, he is accused of treason by Blackwell, court-martialed, and sentenced to death; however, he escapes and rescues Dolly, her father, and Blackwell from Donlin's band of renegades. Jim discovers the missing portion of the note in Donlin's hat, proving his innocence. Dolly remains to become his wife.

Miner John Walsh leaves his wife and baby behind on his barren claim taking their small store of gold to the settlement and gambling it away. He becomes embroiled in a fight with cowpuncher Burns and is killed. Shortly afterwards Mrs. Walsh, weakened by her attempt to work, her husband's claim collapses. The doctor declares only a transfusion can save Mrs. Walsh's life. Burns, now a fugitive, appears and volunteers. Mrs. Walsh's life is saved, but Burns, weakened by hunger and exposure, succumbs, happy in having made amends for his crime.

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.

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.

The sheriff loses his office and a new sheriff comes in. Now the ex-sheriff is going bad, drinking, etc., with no ambition. The tough guys take advantage of his loss of ambition and indignities pile up on him and he makes no protest. He meets the new sheriff's little boy and they become fast friends.

Jerry Kane, a man down on his luck who inherits money but selflessly gives most of it to Maizie Wallace and her sick father. The money is then stolen by two crooks, Pinny Falk and Big Dan Jaffry, leading to a series of events involving a pursuit, mistaken identity, a fight, and a rescue by a posse. Ultimately, the crooks are captured, the money is recovered, and Jerry and Maizie agree to share their future together.

Miner Jim Mann is indifferent to the new baby and sees him as nothing more than an additional burden. His wife Lucy looks after the baby and is unable to help much with the work, and Jim's dinner is often late. He grows to dislike the child and refuses to hold or pet him. Dawson, another miner, and his wife and their small baby occupy the cabin on the adjacent claim.

Miner Holton lives and works with his daughter Leota near Stormy Creek. Leota loves Dick Raleigh, though her father objects. When prospector Tom Andrews is injured near their home Leota and Dad nurse him back to health and give him work in their little mine. In repayment he intends to steal from them taking advantage when Holton is hurt while Leota is away but Dick thwarts him and he and Leota are united with her father’s blessing.

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.

John Ashby and Allene Houston, two neighboring ranchers, are in love, but their parents' violent dispute over the route of the new X. Y. Z. Railroad eventually drives them apart. Colonel Houston and the elder Ashby are killed in a fight, leaving John and Allene to continue the feud, John accepting a job with the railroad company and Allene swearing never to cross their property.

Rustler Pete Sontag kidnaps Merlin Warner after he kills her father. Pete, a drug smuggler who uses his saloon as a front, coerces Merlin though beatings to become the dancer Mexicali Mae. She meets and falls in love with morphine addict Joe Blanchard but Pete frames Joe for a murder that he committed, forcing Mae to hide Joe in a homestead in the hills. After many struggles, Joe is cured of his addiction and proposes to Mae. She accepts, but when his mother and fiancée Eleanor arrive, they offer her money to leave, Mae refuses the money but becomes convinced that she is not good enough for Joe and writes to him that she is returning to the saloon. Joe learning of his mother’s plot arrives at the saloon and in the resultant fight Pete is killed. Mae and Joe are reconciled.

Homesteaders battle a cattle baron, who is trying to drive them off the lands they have settled on so his cattle will be able to graze on it.

In an early California settlement, Juanita, a dance hall queen of Castilian ancestry, knifes her lover, Jim Brandt, the dance hall owner, when she catches him embracing a new dancer.

A couple of rowdy gamblers, a cowboy, and a woman undercover.

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.

15 chapter serial. Gideon Trask and his henchmen at the saloon in Arkansas City covet the mineral survey of the Louisiana Territory made for Napoleon before the sale of the Territory to the United States. This is in possession of the Heath Brothers, who seek to use it in staking their land when the Oklahoma territory, last of the Louisiana tract to be released by the Government, is opened to Homesteaders.

A lost film. As described in a film magazine Exhibitors Herald on March 16, 1918: "a forest ranger known only as Headin' South (Fairbanks) goes forth in search of Spanish Joe (Campeau), a Mexican responsible for most of the treachery and outlawry along the U.S.-Mexican boarder. Headin' South gains quite a reputation as he goes along and finally believes himself worthy of joining Joe's band. in a whirlwind finish in which Joe is captured, Headin' South meets one of Joe's near victims (MacDonald) and falls in love with her."

The film focused on a young black man who joins the Royal Canadian Mounted Police and becomes a hero by rescuing a captive mixed-race woman from a hostile American Indian tribe. The young man later purchases a ranch that becomes the foundation for great financial wealth.