| 0 | - | cover | 1 | pencils: Gill Fox; inks: Gill Fox | Bozo the Robot; Espionage [Black X] (inset); The Ray [Happy Terrill] (inset); The Invisible Hood [Kent Thurston] (inset); Wings Wendall (inset) |
| 1 | The Legion of Living Bombs | comic story | 9 | script: Will Eisner; pencils: Dan Zolnerowich; inks: Dan Zolnerowich | Espionage [Black X]; Batu; Madame Doom (villain); Mirov (villain) |
| 2 | The Electric Paralyzer Ray | comic story | 4 | script: Paul Gustavson; pencils: Paul Gustavson; inks: Paul Gustavson; letters: Paul Gustavson | Magno [Tom Dalton]; Professor Abbot |
| 3 | Nurse and Spy | comic story | 4 | script: Bob Powell; pencils: Bob Powell; inks: Bob Powell | Abdul the Arab; Colonel Gerard; Hassan; Nurse Renaud; Achmed the Beduin; Lt. Picon |
| 4 | Fatima the Queen | comic story | 2 | script: George Tuska; pencils: George Tuska; inks: George Tuska | King Archie O'Toole; Fatima; Ida Clare |
| 5 | The Auto Race | comic story | 4 | script: George Brenner; pencils: George Brenner; inks: George Brenner | Cliff Chance; Spud; Red; Dutch; Monk |
| 6 | - | cartoon | 1 | script: Arthur Beeman; pencils: Arthur Beeman; inks: Arthur Beeman | |
| 7 | The Invasion of Tronvik | comic story | 7 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Wings Wendall; Captain Ludz (Intro); Nazis; Lucky (a girl); Ambassador Stanton |
| 8 | Origin of the Ray | comic story | 6 | script: Will Eisner; pencils: Lou Fine; inks: Lou Fine | The Ray [Happy Terrill] (newspaper reporter, origin); Professor Styne; Anton Rox (villain) |
| 9 | Rowdy Dick Bartell | comic story | 1 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | Dick Bartell |
| 10 | - | comic story | 5 | script: Art Gordon; pencils: Art Gordon; inks: Art Gordon | The Invisible Hood [Kent Thurston]; John Wallace; Renly (villain); Darke (villain); Matt (villain); Spike (villain) |
| 11 | Mountain of Madness | comic story | 4 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Chic Carter; Grayson (Intro, Dies) |
| 12 | Mystery of the Mine | text story | 2 | script: Robert Hyatt | Jimmy Christian |
| 13 | - | comic story | 6 | pencils: Alex Blum; inks: Alex Blum | The Purple Trio [Tiny Todd; Rocky Hill; Warren] |
| 14 | Knocky Knish | comic story | 2 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | Wun Cloo; Knocky Knish |
| 15 | The Monster from the Graveyards | comic story | 7 | script: George Brenner; pencils: George Brenner; inks: George Brenner | Hugh Hazzard; Bozo the Robot; un-named mad scientist (villain, death); Brutus (villain, introduction, a monster, death) |