After a serious quarrel with his father concerning his debts, Wallace Dixon leaves the house in anger, declaring that he will live his life as beat pleases him. That night, Alfred Dixon, the father, hears a noise by the safe in his bedroom, where he is sleeping, and shoots at the intruder who escapes unharmed.

When Marie Louise, the daughter of the town factor, returns home from school, Julio Sandoval, a reckless young half-breed ruled by his animal instincts, develops a passion for the girl, even though she is engaged to Captain McKeever of the mounted police. Meeting Marie when she is alone in the woods one day, the half-breed carries her to his cabin on the mountain top where he collapses from an attack of mountain fever brought on by overexertion.

Louis and August Siever, the twins sons of a German father and American mother, are traveling in Europe when war breaks out. August joins the Kaiser's army, but Louis, a supporter of the United States, is practically made a prisoner in Berlin for a year while he tries to prove his American citizenship. After a violent confrontation with Louis, August steals his brother's passport and leaves for New York with Gerda Anderson, a German spy.

Orphaned after the death of their mother, Nancy Grimm and her baby sister Ellen are taken to the country where Ellen is adopted by the wealthy Walsh family. Nancy keenly feels the loss of her sister, and when the judge rules that she cannot visit Ellen without permission, she throws herself onto a bench, winning the sympathy of young attorney Chester Noble. Nancy is then placed in the Wick's home where she is treated as a servant. Miserable, Nancy cuts off her hair and, dressed as a boy, runs away.

Framed by police inspector Finch and his managing editor, R. H. Steadman, to cover up their own crooked work, reporter John Mull languishes in prison until he escapes, determined to wreak vengeance.

A poor shopgirl is offered a "good time" for a week by the son of her employer. She accepts, but the offer is misunderstood by her brother, who informs the girl's parents of her "fling."

As a baby, John Ermine is stolen from a wagon train by the Crow Indians and is adopted by Chief Fire Bear. John grows to manhood, ignorant that he is a white man until his parentage is disclosed to him by Crooked Bear, a white hermit who is on friendly terms with the Crows. Crooked Bear teaches John the language and customs of the white man's civilization, impressing upon him that it is his sacred responsibility to keep peace between the white men and the Indians.

Drifters Tom Williams and Joe Morgan have a chance meeting with the sheriff's daughter and learn that her brother Jim is being held prisoner in Line Hollow by Wolf, who aspires to be the next sheriff. They aid the sheriff in finding the outlaw gang and rescuing Jim. Tom decides to stop drifting and stay near the sheriff's daughter.

Thérèse Raquin, an unhappily married woman, aided by her lover Laurent, drowns her husband Michaud, only to find the guilt of her actions intolerable.

An actor playing Othello in a stage production of Shakespeare's play becomes jealous of his wife's supposed infidelity and seems bound to kill her in the scene in which she, enacting Othello's falsely accused wife Desdemona, is murdered by her jealous husband.

Joanne Gray goes North to find out whether her husband is dead or alive and to attempt to obtain the release of her innocent brother from jail. She becomes enamored of a youth who has staked out a gold claim but remains chaste until her husband is found and killed, meeting death in a fight with the youth's partner.

John Dowling, a greedy factory owner, cuts his employees' pay while raising their food prices at the company store. The employees strike but to no avail. Mary Garvin visits Dowling to plead the laborers' cause, but because her mother had once refused his marriage proposal, he attacks Mary out of revenge. In the struggle, Dowling is shot, and Mary is tried and convicted of murder. Before the execution, foreman "Bull" Thompson boasts that his bullet killed Dowling during Mary and the factory owner's struggle, and Dowling's son Chester, who has attempted to introduce reforms into the factory, races to the governor's train to secure a pardon for Mary. After Mary's release, she and Chester are married.