Episode titles:
- 1. The Oriental Death Punch.
- 2. The Mysterious Man.
- 3. The Spider's Web.
- 4. The Next Victim.
- 5. The Spectral Hand.
- 6. The Death Warrant.
- 7. The Marked Room.
- 8. High Finance.
- 9. A Stern Chase.
- 10. The Guarded Heart.
- 11. The Thought Machine.
- 12. The Sign of the Thumb.
- 13. Twixt Death and Dawn.
- 14. The Light of Dawn.
- 15. The Living Death.