A variety of people are searching for a long-hidden treasure somewhere on an island. Chapters: 1. The Isle of Fear, 2. The Ghost Talks, 3. The Phantom Duel, 4. Buried Alive, 5. The Girl Who Vanished, 6. Trapped by the Flood, 7. The Cannon Roars, 8. The Circle of Death, 9. The Pirate's Revenge, 10. The Crash, 11. Dynamite, 12. The Bridge of Doom, 13. The Mad Flight, 14. The Jaws of Destruction, 15. Justice
| Writing | George M. Merrick | Screenplay |
| Directing | Elmer Clifton | Director |
| Writing | George Rosener | Screenplay |
| Writing | Elmer Clifton | Screenplay |
| Writing | L. Ron Hubbard | Story |
