Charles Hutchison fractured both wrists during filming.
Edith Thornton was originally cast as Martha Steadman, but she had not yet recovered from injuries sustained during the filming of The Whirlwind and the part went to Josie Sedgwick.
Chapter titles: 1. On the Trail of Fate 2. The Harbor Bandits 3. Hearts of Stone 4. The Gun Runner 5. The Rebel's Nest 6. Troubled Trail 7. War in the Oil Fields 8. The Grill of Fate 9. The Black Whirlpool 10. A Devil's Bargain 11. The Danger Ledge 12. Hazardous Heights 13. By Air and Sea 14. The House in the Canyon 15. The Wages of Crime
This was the first Pathé serial with overlap and chapter recaps at the beginning of each chapter.