| 0 | Death-Rattle of the 12-Hour Man!; The Duel of the Super-Heroes! | cover | 1 | pencils: Nick Cardy; inks: Nick Cardy; colors: Tatjana Wood; letters: Gaspar Saladino | Flash [Barry Allen]; Kid Flash [Wally West]; Green Lantern [Hal Jordan]; Flash [Jay Garrick] (vignette); Johnny Quick (vignette) |
| 1 | Table of Contents | table of contents | 1 | pencils: Dick Giordano; inks: Dick Giordano | Flash [Barry Allen] |
| 2 | Death-Rattle of the 12-Hour Man! | comic story | 20 | script: Cary Bates; pencils: Irv Novick; inks: Frank McLaughlin | Flash [Barry Allen]; Kid Flash [Wally West]; Iris Allen; Stacy Conwell; Charles Conwell (Flashback Cameo); Myrmitons (Alien Race, Villain); Bio-X |
| 3 | Meet Kid Flash | comic story | 2 | | Flash [Barry Allen]; Kid Flash [Wally West] |
| 4 | The Duel of the Super-Heroes! | comic story | 25.67 | script: John Broome; pencils: Gil Kane; inks: Joe Giella | Flash [Barry Allen]; Green Lantern [Hal Jordan]; Iris West; Chi-Yam (Chief of the planet Spectar); Gi-Dor; Pieface [Thomas Kalmaku]; Carol Ferris; Terga (Kalmaku's girlfriend) |
| 5 | - | cartoon | 1 | | |
| 6 | The Images of Doom | comic story | 12 | script: Robert Kanigher; pencils: Carmine Infantino; inks: Frank Giacoia | Flash [Jay Garrick]; Dr. Maria Flura; Joan Williams; Professor Lexon; The Secret City |
| 7 | Flash Puzzle | activity | 1 | script: Bob Rozakis | Flash [Barry Allen]; Flash [Jay Garrick] |
| 8 | The 9th Wonder of the World! | comic story | 9 | script: Bill Finger; pencils: Mort Meskin; inks: George Roussos | Johnny Quick [Johnny Chambers]; Tubby Watts; Pal the Wonder Dog; Mel Mitchum |
| 9 | Vengeance Via Television! | comic story | 8.67 | script: John Broome; pencils: Carmine Infantino; inks: Joe Giella | Flash [Barry Allen]; Iris West; James Lawton (villain); Edgar Barnard |
| 10 | Answers to the Flash-Puzzle | activity | 0.33 | pencils: ? (illustration); inks: ? (illustration) | Barry Allen |
| 11 | - | letters page | 2 | script: Bob Rozakis | |