Amy Benham, known as "West Wind," daughter of John Benham, a ranch owner, is abducted by Girot, a cowboy, and her father is killed. Kennard, a young Army Captain, in love with Amy, and Sullivan, the ranch foreman, head a searching party, but Girot dares the rapids of White River in a canoe and brings the girl to the Sioux encampment. She is aided by Mahwissa, an Indian squaw, to escape and hide in a cave, where Sullivan finds them. After a confrontation between her saviors and the villains all is resolved happily.
The Secret Kingdom is a 1917 silent action movie serial comprised of 15 chapters: 1. Land of the Intrigue 2. Royalty at Red Wing 3. Sealed Packet 4. Honorable Mr. Oxenham 5. Carriage Call #101 6. Human Flotsam 7. Ghost Ship 8. Rum Cay 9. Swamp Adder 10. A Goat Without Horns 11. The White Witch 12. The Shark's Nest 13. The Tragic Masque 14. The Portrait of a King 15. The Tocsin.
John Douglas, a high-society playboy, is a cynic concerning the women of his social set, and has a pictured ideal of the girl of his dreams. Wising to avoid the upcoming social season, he hops a freighter bound for the Orient. It sinks in mid-ocean and he, as the sole survivor, is washed upon a island, where he is rescued by Nia, daughter of the tribal chief, Neto.John is puzzled as all of the tribe are white people, but he learns from the tribal chief they are descendant's of English-origin who also are on the island because of a ship wreck a few hundred years ago.
Returning to his hometown, Bill Duncan conceals his identity due to a longstanding feud with the Flynne family. He is soon found out and arrested for the murder of rancher Red Flynne. Flynne's estate is bequeathed jointly to his foreman Rolfe McPherson and his daughter Helen. Helen believes her father wished her to marry Rolfe, unaware that he plotted the murder. Clued in by the housekeeper of Rolfe's guilt, Bill escapes and pursues Rolfe who has kidnapped Helen and is headed for the Mexican border. Bill comes to the rescue, brings the villain to justice, and wins Helen.
The ranger Jack Dunne and his dog Dynamite are called in to investigate a series of cattle rustlings.
A mounted police inspector battles not only a gang of opium smugglers but also a haughty society belle
Arnold, reproved by General Washington, decides, with the bitter hatred of a small nature, to betray West Point into the hands of the British, and to that end enters into negotiation with Major Andre, as the representative of the British General.
Financier Mark Harrold is responsible for the financial ruin and subsequent suicide of Stanton. Following his death, Stanton's daughter Margaret, seeking revenge, goes to work for Harrold's beloved daughter Helen. The latter plans to marry the dashing Lord Strathmore and thus attain her social ambitions, but Margaret, to avenge her father's death, wins Strathmore away from her by deception. After their marriage, Margaret leaves Strathmore, claiming that she never loved him. With the birth of their child, Margaret becomes ill and blind, but Strathmore finds her and gives her money under an assumed identity. Following an operation that restores her sight, Margaret recognizes her husband as her benefactor and realizes that she loves him.
Quiet and fairminded Jack Bliss traces his missing father to Hell's Hole, where he meets Helen Turner and Jack Hall, the leader of an outlaw gang rendezvousing at Hell's Hole. Hall kills Helen's father but fails in his attempts to get rid of Bliss and Helen, and Bliss, singlehanded, takes on the gang while the neighboring ranchers, settlers, and herders unite to clean out the outlaws.
An entomologist and his wife head out into the countryside for his studies and happen upon a group of free-spirited young dancers.
After a whirlwind romance Marion Phillips and Richard Flint marry impulsively without Richard realizing Marion is wealthy. Marion insists upon living in lavish style, but Richard, embittered by the cutting remarks made by his wife's snobbish friends leaves to seek his fortune in the mines. Marion follows but is soon bored. Persuaded by James Cardwell she goes back to her glamorous friends in the city before Richard strikes it rich. Determined to have his revenge upon Cardwell, Richard returns to New York crushing Cardwell on Wall Street but obliterating his wife's wealth in the process. The barrier that existed between them thus resolved; the lovers are reconciled.
Better by far that ten Guilty men escape than that one Innocent man die for another's crime-Upon this is built the most thrilling melodrama of the season.
Impersonating Little Eva in a third-rate travelling production of Uncle Tom's Cabin fails to earn Nora enough for a square daily meal, and to make thing worse, her stage career comes to a sudden end when the sheriff arrives with a writ of seizure. Nora hops a passing freight but is frightened by a tramp, jumps off, and literally rolls into the town of Wattelville. After being arrested as a suspicious character, Nora is adopted by the kindly Ma Forbes, whose son James works in the local bank. "Pug" Hennessy and "Soup" McCool, two crooks, inveigle the scrupulously honest James into a poker game and, as a result, he is forced to steal $300 from the bank to cover his losses. Impersonating expert safe-cracker Velvet Mary, Nora helps the crooks to break into the bank, but upon opening the safe, she sounds the alarm, and the crooks are arrested. Having learned his lesson, James proposes to Nora, who never again is forced to go hungry.
Extremely condensed version of the Mark Twain story of a royal heir and his poor doppelganger trading places.
Buddy Walters is a cowboy falsely accused of a crime actually committed by nasty Al Richmond.
Lt. Tom Brennan is cashiered from the 7th Cavalry on two charges, both unjust: that of deserting his men in the face of a cruel Indian attack, and of entertaining a married woman in his quarters after hours. Tom wanders into the desert and is picked up half-dead by Yuba Bill, a prospector with whom he goes into partnership. The Indians go on the warpath, and Tom rides to the fort and warns the colonel. Tom's innocence is established by the confession of an enlisted man, and Tom is reinstated to the service with full honors, renewing his engagement with Margaret Cranston.
Joyce (Jacqueline Logan), a beautiful and efficient secretary, does her best to take in hand and reform shiftless stock clerk Jimmy (William Colllier, Jr.), with whom she is in love. Despite her tireless efforts, he continues on his downward path. They separate, only to meet a couple of years later, at which point he vows to make himself worthy of her.
Getting his laundry from the Chinaman, "Honest Jim" spruces himself up in preparation to make a call on "Bess," with whom he is in love. Calling at Circle Ranch, her home, he finds Jack Rance making overtures to her father for "Bess' " hand. She greets Jim pleasantly, but she dislikes Jack; there is something about him which is distasteful to her and when her father intercedes for him she leaves the porch and hurries into the house. She does not have to wait very long to see "Jim" and "Jack" in their true colors and make a choice between the two. The clergyman of the ranch settlement and the .surrounding country comes to the post office where a crowd of cowboys are gathered to receive their mail.
Olive Muir, a haughty society girl, objects when Alice Prentice, a girl of lower station, comes to visit her family. After Alice's drunken father comes to visit the Muir home, Olive learns to her horror that she is adopted and that Prentice is her real father.
A murderous couple base their killing spree on the astrological signs of their victims. Lost slasher film.