Episode titles:1. Chained to the Anchor2. The Falling Wall3. The Runaway Car4. The Crushing Menace5. Shot Into Space6. Under the Avalanche7. On Danger's Highway8. The Broken Life Line9. Under the Cauldron10. The Edge of the Roof11. The Air-Line Route12. Between the Rails13. Under the Ice14. In The Doorway of Death15. Ten Minutes to Live