Chapter titles: 1. The Flaming Cross 2. The Flying Fortress 3. The Sea Crawler 4. A Marine Miracle 5. Halls of Hazard 6. The Flight of the Fury 7. Hearts in Torment 8. Walls of Gas 9. Struck Down 10. Wires of Wrath 11. The Rail Raiders 12. The Show Down 13. Cornered 14. No Surrender 15. The Round Up
