The titles of the 15 individual chapters, their respective running times and certificate numbers are: The Arms of the Gods: 26.15 - #2509 The Crushing Walls: 17.00 - #2510 13 Ferguson Alley: 17.00 - #2511 Death on the Wire: 17.04 - #2512 The Sinister Ray: 16.25 - #2513 The Sword Thrower: 17.25 - #2514 The Noose: 21.29 - #2515 Midnight: 17.32 - #2516 The Last Warning: 18.46 - #2517 The Bomb: 20.00 - #2518 Thundering Doom: 18.31 - #2519 Invisible Gas: 18.22 - #2520 The Brink of Disaster: 18.27 - #2521 The Fatal Trap: 18.25 - #2522 The Avenging Powers: 17.48 - #2523 The chapters have a total running time of 280.5 minutes (4 hours 40 minutes)

15 chapter serial with two feature versions, one under original title, the other called "Yellow Phantom," issued in 1942.