A silent movie serial consisting of 16 two-reel chapters. 1. Hidden Power. 2. The Mutilated Hand. 3. The Poisonous Tarantula. 4. Plot of a Demon. 5. The Haunted House. 6. The Torture Chamber. 7. Drops of Blood. 8. The Time-Clock Bomb. 9. The Crystal Globe. 10. A Message from the Sky. 11. The Half-Breed’s Hatred. 12. Aeroplane Accident. 13. The Spy and the Submarine. 14. Interrupted Nuptials. 15. The Pay of Death. 16. The Final Strand.

Harry Caton, a popular New York musical-comedy star, loses his voice on stage and then journeys to a small town on the New England coast to recuperate. Here Harry meets the beautiful Nancy Potter when he defends her against the drunken advances of Silas Jones, her father's friend. Although his daughter believes that he is a fisherman, Cail Potter is actually a thief, robbing houses along the coast with Silas as his accomplice. When Cail robs the wealthy Col. Brett's home, he finds an old miniature of a woman who exactly resembles Nancy, whom Cail rescued from a wrecked boat when she was just a year old. Soon after the robbery, Harry learns that the police are about to raid Cail's house, but Silas knocks him unconscious when he attempts to warn Nancy.

Harle, a successful French businessman, is so absorbed with his factory that he neglects his wife Claire. One day, Harle's old friend Henri, the Marquis de Puymaufray, comes to visit, and Claire falls in love with the cultured and sensitive man. Several months after his departure, Claire gives birth to a baby girl, Claudia, and dies shortly afterward from neglect and depression. Twenty years pass and Claudia has grown into a beautiful woman. Her father wishes her to wed a count, but she loves Maurice, a young American. During a labor dispute, Claudia is abducted by her father's disgruntled employees and held for ransom. The marquis, who has long watched over the girl, loses his life in a rescue attempt, but Maurice finally succeeds in liberating his sweetheart. After the marquis' death, it is revealed that Claudia actually was his daughter, and Harle, crushed, retires to his country estate, freeing the girl to voyage to America with the man she loves. A lost film.

Robert Gordon wants Donald, his son, to marry Sir Ralph Fisher's sister, but Donald loves Alice, a working-class girl, and weds her in secret.

James Rallston, facing financial hardship, marries a wealthy invalid widow with a daughter, Jean, and plots to control her fortune. He orchestrates her confinement in a sanitarium by drugging her and falsely claiming she is insane, with the help of a conniving doctor and sanitarium keeper. Fifteen years later, Rallston has lost Jean's fortune through speculation and seeks help from John Bigelow to recover it, offering Jean as a reward. Bigelow, suspicious of Rallston, discovers the truth about the widow and Jean's father, and rescues the widow from the sanitarium.

Clean-living pugilist Jim Fortune assists Angelica Hart when her husband Duncan assaults her in a Bowery café. Soon after, Jim fights a bout with Hart, an amateur society boxer, during a dinner party. Enraged by the sight of whip marks on Angelica's neck, Jim knocks Hart out soundly. In revenge, that night Hart attacks Angelica.