The hypnotist Svengali makes an artist's model sing, but cannot force her love.

A Canadian Mountie allows an innocent fugitive to escape with the women he loves.

Bill Evers, a gambling house keeper, is in reality the "Desert Scourge," an outlaw.

Oil is discovered on the Countess de Elberca's estate in a mythical Spanish American country. Mercedes McDonald, her niece, falls in love with Sandy Buchanan, a young Scotch engineer hired by the countess. Don Felipe, a neighbor in need of money to avoid arrest for embezzlement, conspires with his nephew, the Duke of Othomo, for the latter to wed Mercedes. The aunt approves the suit. Felipe and Othomo attempt to kill Mercedes' sweetheart, but Buchanan, with the aid of her brother and a traveling American circus, foils their plans. Felipe and Othomo are killed by the circus animals, and the aunt consents to Mercedes' marriage to Buchanan.

The Allen spinsters adopt Bradley Nickerson, who grows up with Gussie Baker, the little girl next door. Fifteen years later he is first mate of the Thomas Doane, owned by Granny Baker. A plot to sink the ship is averted by Bradley and a sailor, but ultimately the ship is sabotaged.

Idealistic young American falls under the influence of Communist agitators.

Jim Maitland loses his last cent gambling the Double Stamp saloon and gambling hall, and shortly after it closes, he robs the proprietors "Keno" Bates and "Wind River"are robbed, at gunpoint. After the surprise, they track Maitland down, and Keno shoots him dead on self defense. Keno goes through his belongings and finds a letter and a locket; the letter announces the arrival of the deceased's sister, and the locket has a cameo picture of Doris Maitland. Thus, Keno tells Wind River they must do a heap of lying. Meeting the girl at the stagecoach's arrival, Keeno feels responsible for the innocent and attractive Ms. Maitland; he tells her a white lie, that her brother was a good man, "killed in a mine accident," who had left her a cabin and money - and Keno turns his own cabin over to Doris. Keno and Doris began to fall in love. Anita, a dance-hall girl, aggressively tries to seduce Keno.

Harold Mark marries Thora after treating her injured grandfather, then migrates to New York City with his young wife to study surgery. While Harold devotes himself to his studies and to social problems, Thora seeks expression with Greenwich Village bohemians and falls prey to the flattery of sculptor Monsieur Duparc, who convinces her that she is neglected by her husband. After the Marks separate, Harold becomes chief surgeon of a state hospital, and Thora spends a year as the guest of Duparc's aunt. On his way to persuade Harold to divorce Thora, Duparc is injured in an automobile accident. Harold unselfishly performs lifesaving surgery on Duparc, while a crazed patient sets fire to the hospital. Afterward, Harold returns to Thora's country home. She follows and they are reconciled.