Steve Brant, an ex-pugilist who owns a small circus, makes crude advances toward Doraldina, a lovely equestrienne; and when she resists him, he angrily beats her horse.

18 episode adventure serial. 1. Westward Ho!, 2. White Treachery, 3. Across the Continent, 4. Message of Death, 5. Wagon of Doom, 6. Secret Foes, 7. A Man of God, 8. Seeds of Civilization, 9. Justice, 10. The New Era, 11. A Game of Nations, 12. To Save an Empire, 13, Trail of Death, 14. On to Washington, 15. Santa Fe, 16. Fate of a Nation, 17. For High Stakes, 18. Victory

In order to save lovely Lorraine from a gang of claim jumpers Art teams with his wonder dog and horse.

Wonder dog and horse belong to Pattie, the "wild girl" of the title, who rejects a proposal from uncouth mountaineer Lige Blew in favor of romancing handsome photographer Billy Woodruff. Taking umbrage to the girl's decision, Lige frames Pattie's granddad for murder.

Jack Lupton loves three things in the world, Buck his dog, Scout his horse and the lovely rancher's daughter Mary Gale. But his beloved horse Scout was driven off by man's cruelty and finding freedom, now leads a big herd of horses to run wild! And Jack has his own problems with the cruelty of his fellow man, in the form of James Hill his brutal and jealous rival for Mary's affections!

With help from his talented horse and dog, a marshal captures bandits.

Clinging desperately to his ranch, penniless Jack Sheldon is falsely accused of killing a sheriff's deputy, a heinous crime actually committed by crooked ranch foreman Joe Phillips.

Lovely Jessie Stevens falls in love with Jim Sullivan, much to the dismay of Red Collins (L.J. O'Connor), who wants the girl for himself. Red blackmails Jessie's father, Job, into ordering his daughter to forget all about Jim, who takes to the bottle instead.

The dog, Rex, finds the baby abandoned in the mountains. Unfortunately, the nearest town has no orphanage and rough cowboy and wonder-dog owner Bruce is forced to care for the infant himself.

The Thunderbolt Strikes