| 0 | - | cover | 1 | pencils: Gill Fox; inks: Gill Fox | The Black Condor [Richard Grey, Jr.]; Jane Arden (inset); The Clock [Brian O'Brien] (inset); The Red Torpedo [Captain Jim Lockhart] (inset); The Spider [Tom Hallaway] (inset) |
| 1 | The Clock | comic story | 7 | script: George Brenner; pencils: George Brenner; inks: George Brenner | The Clock [Brian O'Brien]; The Orchid; Harvey Gibbs (villain, introduction); Nick (villain, introduction); other un-named gangsters (villains, introduction for all) |
| 2 | - | comic story | 4 | script: John Devlin; pencils: John Devlin; inks: John Devlin | Molly; Nifty; Danny; Gloria Glamour |
| 3 | New Way to Get a Seat | comic story | 1 | script: Rube Goldberg; pencils: Rube Goldberg; inks: Rube Goldberg | |
| 4 | The Blastproof Battleship | comic story | 5 | script: Henry Kiefer; pencils: Henry Kiefer; inks: Henry Kiefer | The Red Torpedo [Captain Jim Lockhart]; Adolf Hitler (villain); Herman Göring (villain); Josef Goebbels (villain); the Nazis (villains) |
| 5 | - | comic story | 4 | script: Bob Zuppke; pencils: Walt Depew; inks: Walt Depew | |
| 6 | Mission to Chenfu | comic story | 4 | script: Bob Powell; pencils: Bob Powell; inks: Bob Powell | Lee Preston; Ken Davis (introduction); Chinese renegades (villains) |
| 7 | - | cartoon | 1 | script: Ed Reed; pencils: Ed Reed; inks: Ed Reed | |
| 8 | The Villain from Venus | comic story | 5 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Space Legion; Rock Braddon; Jafek (villain, introduction, death); Prof. Wadsworth (introduction); Elaine Wadsworth (introduction) |
| 9 | - | comic story | 2 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | |
| 10 | Patterson's Plot | comic story | 4 | script: Paul Gustavson; pencils: Paul Gustavson; inks: Paul Gustavson; letters: Paul Gustavson | The Spider [Tom Hallaway]; Patterson (villain, introduction, death) |
| 11 | - | comic story | 4 | script: Monte Barrett; pencils: Russell Ross; inks: Russell Ross | |
| 12 | - | comic story | 4 | script: Monte Barrett; pencils: Russell Ross; inks: Russell Ross | |
| 13 | About That Fourth Inning in Philadelphia in 1925. | cartoon | 1 | script: Bob Zuppke; pencils: Walt Depew; inks: Walt Depew | |
| 14 | Professor Discovers New Destructive Chemical | comic story | 5 | script: Art Pinajian; pencils: Art Pinajian; inks: Art Pinajian | Madam Fatal [Richard Stanton]; Prof. Lane (introduction); Sgt. O'Malley (introduction); A spy (villain, introduction) |
| 15 | Doom Syndicate | text story | 2 | script: Larry Spain | Eric Vale (first appearance) |
| 16 | Jean Hersholt | cartoon | 1 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | |
| 17 | The House of Fear | comic story | 7 | script: Harry Campbell; pencils: Harry Campbell; inks: Harry Campbell | Wizard Wells; Black Morda (villain) |
| 18 | The Adventure of Ali Kan | comic story | 7 | script: Will Eisner; pencils: Lou Fine; inks: Lou Fine | The Black Condor [Richard Grey, Jr.]; Andrea Kent (introduction); Denny Kent (introduction); Ada (introduction); Ali Kan (villain, introduction) |