| 0 | - | cover | 1 | pencils: Gill Fox; inks: Gill Fox | Espionage [Black X]; The Ray [Happy Terrill] (inset); Bozo the Robot (inset); Wings Wendall (inset); The Invisible Hood [Kent Thurston] (inset) |
| 1 | The Revenge of Bela Jat | comic story | 9 | pencils: Lou Fine; inks: Lou Fine | The Ray [Happy Terrill]; Shimego; Gar; Bela Jat (villain, introduction, death) |
| 2 | Mystery of the Empty Theatre | comic story | 6 | pencils: Alex Blum; inks: Alex Blum | The Purple Trio [Rocky Hill; Warren; Tiny Todd]; Old Willy (introduction, death) |
| 3 | The Hypnotic Fiend | comic story | 2 | script: George Tuska; pencils: George Tuska; inks: George Tuska | Archie O'Toole; Sum Fun (intro) |
| 4 | - | comic story | 4 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Mae "Scoop" Merrill (intro); Chic Carter |
| 5 | - | comic story | 5 | script: Manning Lee; pencils: Manning Lee; inks: Manning Lee | The Scarlet Seal [Barry Moore] (actor, introduction, origin); Captain Pat Moore (Barry's father, introduction); Lt. Bemis; Spider (death); Bugs Marlone (villain) |
| 6 | - | comic story | 5 | script: Art Pinajian; pencils: Art Pinajian; inks: Art Pinajian | The Invisible Hood [Kent Thurston]; Professor James; Professor Hill; Dr. Robb (introduction, death) |
| 7 | Invasion of Mexico | comic story | 6 | script: Will Eisner; pencils: Dan Zolnerowich; inks: Dan Zolnerowich | Espionage [Black X]; Rod Pasquale; Colonel Atwater |
| 8 | The Labor Racketeers | comic story | 4 | script: Paul Gustavson; pencils: Paul Gustavson; inks: Paul Gustavson; letters: Paul Gustavson | Magno [Tom Dalton]; Big Tim Fink (villain, introduction) |
| 9 | The Arson Arrows | comic story | 2 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | Fire Commissioner Nosey (Intro) |
| 10 | The Sheik's Power Play | comic story | 4 | script: Bob Powell; pencils: Bob Powell; inks: Bob Powell | Abdul; Hassan; Sheik Karu-Bali (Intro, Dies) |
| 11 | Vanishing Gold | comic story | 2 | script: Robert M. Hyatt | |
| 12 | - | cartoon | 1 | script: Arthur Beeman; pencils: Arthur Beeman; inks: Arthur Beeman | |
| 13 | The Fifth Column | comic story | 7 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Wings Wendall; Puget (Intro, Dies) |
| 14 | Turgin's Fifth Column | comic story | 7 | script: George Brenner; pencils: George Brenner; inks: George Brenner | Hugh Hazzard; Bozo the Robot; Turgin (intro,dies) |