Chapter Titles:
- 1. Death Flies the Mail
- 2. The Mail Goes Through
- 3. Sky Bandits
- 4. The Copper Room
- 5. The Night Flight
- 6. The Baited Trap
- 7. Tommt to the Rescue
- 8. The Thrill of Death
- 9. The Earth Gods Roar
- 10.Death at the Controls
- 11.Rushing Waters
- 12.Littleville's Big Day
The first of two Universal Pictures serials and four Monogram Pictures feature films based on Hal Forrest's syndicated comic strip.