Chapter Titles:
- 1. The Mystery Riders
- 2. The White Chief
- 3. Hidden Gold
- 4. The Silent Doom
- 5. Murder Will Out
- 6. The Secret of Iron Mountain
- 7. The Law of the Lawless
- 8. Red Phantoms
- 9. The Invisible Enemy
- 10. Midnight Magic
- 11. Unmasked
- 12. The Trail To Glory
Whenever Kraft and his henchmen go through the secret tunnel, a dotted line is shown over a still picture of the outside of the two buildings. The dotted line represents them going through the tunnel.
An edited/condensed feature version of this serial was released in 1948 by Albert Dezel Productions with a changed title, The Return of Kit Carson, and was played on a double bill with "The Return of the Mohicans", an edited/condensed feature version of Mascot's "The Last of the Mohicans" serial.
Chapter 12, is a budget-saving recap episode where sequences from previous chapter: 2 are shown for most of the running time.
Chapter 4, is a budget-saving recap episode where sequences from previous chapter: 1 are shown for most of the running time.