| 0 | - | cover | 1 | pencils: Gill Fox; inks: Gill Fox | The Ray [Happy Terrill]; Midnight [Dave Clark] (inset); Bozo the Robot (inset); Wings Wendall (inset); Espionage [Black X] (inset) |
| 1 | The Empire of Captain Blue | comic story | 9 | pencils: Lou Fine; inks: Lou Fine | The Ray [Happy Terrill]; Jackie (introduction, later known as Bud); Keefer; Rogers; Captain Blue (villain, introduction, death) |
| 2 | - | comic story | 1 | | |
| 3 | Gabby, the Talking Monkey | comic story | 5 | script: Jack Cole; pencils: Jack Cole; inks: Jack Cole | Midnight [Dave Clark]; Gabby the talking monkey (introduction); Alice O'Day (scientist, death); Slug McGurk (villain); Julie the Jerk (villain) |
| 4 | Trouble on Sao Paulo Island | comic story | 4 | pencils: Vern Henkel; inks: Vern Henkel | Wings Wendall; Spinner Benson; Derek; Baron; Col Harrison |
| 5 | - | comic story | 6 | pencils: Alex Blum; inks: Alex Blum | The Purple Trio [Tiny Todd; Warren; Rocky Hill]; J. G. Throcton |
| 6 | - | comic story | 1 | script: Jack Cole; pencils: Jack Cole; inks: Jack Cole | |
| 7 | - | comic story | 5 | script: Art Pinajian; pencils: Art Pinajian; inks: Art Pinajian | The Invisible Hood [Kent Thurston]; Mr. Mite (villain, introduction, spy); Black John (villain) |
| 8 | - | comic story | 6 | script: Dick French; pencils: Witmer Williams; inks: Witmer Williams | Espionage [Black X]; Batu; Madame Doom (villain); Ahkir Jubnijhak (villain) |
| 9 | - | comic story | 4 | pencils: Bob Powell; inks: Bob Powell | Abdul; Hassan; Afta Ikur; Cy Young |
| 10 | - | comic story | 5 | script: Harry Campbell; pencils: Harry Campbell; inks: Harry Campbell | The Scarlet Seal [Barry Moore]; Captain Tim Moore; Seymour Blots (villain) |
| 11 | - | comic story | 4 | script: Paul Gustavson; pencils: Paul Gustavson; inks: Paul Gustavson; letters: Paul Gustavson | Magno [Tom Dalton]; Dr. Harry Wood; Van Nest |
| 12 | Ghost Stampede | text story | 2 | letters: typeset | |
| 13 | Lost in the Wilds of Tibet | comic story | 4 | pencils: Vern Henkel; inks: Vern Henkel | Chic Carter; Gordon Bruce; Chung Musta; Hilme; the Prince of Kabat |
| 14 | - | comic story | 7 | pencils: George Brenner; inks: George Brenner | Tom Holms; Mr.Goyle; Hugh Hazzard; Bozo the Robot; Chico |