The death-ray footage used in chapters 11 and 12 is taken from Air Hawks (1935) Chapter Titles: - 1. Night of Terror - 2. Death Below - 3. High Voltage - 4. Surrender or Die - 5. Shoot to Kill - 6. Sealed Lips - 7. Shadows of the Night - 8. While the City Sleeps - 9. Doomed! - 10. Flaming Danger - 11. The Road To Peril - 12. The Spider Falls - 13. The Man Hunt - 14. The Double-Cross - 15. The Octopus Unmasked!