Bela Lugosi's illness prevented him from finishing the 1936 Republic feature "House of a Thousand Candles," so he completed his one-picture Republic contract with this 12 chapter serial, his only screen role during the full two year horror ban.
Chapter Titles:
- 1. Disaster At Sea
- 2. Barrase Of Death
- 3. The Gas Chamber
- 4. The Fatal Shaft
- 5. The Mystery Ship
- 6. Deadly Cargo
- 7. Undersea Terror
- 8. The Crash
- 9. Wolves At Bay
- 10. The Acid Trail
- 11. The Sea Battle
- 12. The Deadly Circle
Filmed June 20-July 15 1937, released August 28. A feature version was issued in 1942.