| 0 | - | cover | 1 | pencils: Gill Fox; inks: Gill Fox | Espionage [Black X]; Wings Wendall (inset); Bozo the Robot (inset); Archie O'Toole (inset); Abdul the Arab (inset) |
| 1 | Devil's Island | comic story | 9 | script: Will Eisner; pencils: Will Eisner; inks: Will Eisner | Espionage [Black X]; Dean (death); Batu; M'sieu Rolande (death); Camille; Commandant of Devil's Island; Rene (death); Moran (villain, thief) |
| 2 | Old Clutchcopper | comic story | 2 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | Wun Cloo; Old Clutchcopper (Intro) |
| 3 | The Northern Fur Robbery | comic story | 4 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Chic Carter; Gat Griffin; Trixie; Blinky |
| 4 | - | cartoon | 1 | script: Arthur Beeman; pencils: Arthur Beeman; inks: Arthur Beeman | |
| 5 | The Golden Dragon | comic story | 5 | script: Art Gordon; pencils: Art Gordon; inks: Art Gordon | Invisible Hood [Kent Thurston]; Joyce Clark; Dan Clark; Thomas Clark; The Golden Dragon [Ah Sin](villain, introduction) |
| 6 | The Golden Spike | comic story | 2 | script: George Tuska; pencils: George Tuska; inks: George Tuska | King Archie O'Toole; Gil O'Teen |
| 7 | Cliff Melton | comic story | 1 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | |
| 8 | The Rifle Robbery | comic story | 7 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Wings Wendall; Conrad Gunther (introduction); Judy Mallon (introduction) |
| 9 | - | comic story | 6 | pencils: Alex Blum; inks: Alex Blum | The Purple Trio [Tiny Todd (a midget); Rocky Hill (an acrobat); Warren (a magician)] (introduction, origin); Sandra Starr |
| 10 | - | comic story | 4 | script: George Brenner; pencils: George Brenner; inks: George Brenner | Clip Chance; Spud; Chuck |
| 12 | An Almost Perfect Swindle | comic story | 1 | script: John Devlin; pencils: John Devlin; inks: John Devlin | Philpot Veep; Waldo |
| 13 | The Episode of the Prominent Proboscis | comic story | 1 | script: John Devlin; pencils: John Devlin; inks: John Devlin | Philpot Veep; Waldo |
| 14 | The Origin of Magno | comic story | 4 | script: Paul Gustavson; pencils: Paul Gustavson; inks: Paul Gustavson; letters: Paul Gustavson | Magno [Tom Dalton] (introduction, origin); Mike Harvey (introduction) |
| 15 | Kickback | text story | 2 | script: Robert M. Hyatt | Tobe Waller; Tony |
| 16 | Ahmed the Bedouin | comic story | 4 | script: Bob Powell; pencils: Bob Powell; inks: Bob Powell | Abdul the Arab; Hassan; Ahmed; Najaf (Intro); Sheik Tell Akib (intro) |
| 17 | Tracking the Chinatown Terror | comic story | 4 | pencils: Stan Asch; inks: Stan Asch | Craig Cook; Kelly; The Key (intro) |
| 18 | The Pneumonia Cure | comic story | 7 | script: George Brenner; pencils: George Brenner; inks: George Brenner | Bozo the Robot; Hugh Hazzard; Dr. E. Salor (intro); Boss Patone; Slick; Horg (Dies) |
| 19 | The Ray | promo (ad from the publisher) | 1 | | The Ray |