| 0 | The Mighty Samson Demolishes the Closing Torture Walls | cover | 1 | pencils: Lou Fine; inks: Lou Fine | Samson |
| 1 | The Giant Robots of Kilgor | comic story | 13 | script: Will Eisner; pencils: Alex Blum; inks: Alex Blum | Samson; Kilgor (villain, introduction, death); Prof. Brun; Rigo |
| 2 | Invasion of the Three-Armed Men | comic story | 6 | pencils: Don Rico; inks: Don Rico | Flip Falcon; Three-Armed Men (villains) |
| 3 | The Legend of the Haunted Well | comic story | 8 | pencils: Grieg Chapian; inks: Grieg Chapian | Golden Knight [Sir Richard of Warwick]; Alice (introduction) |
| 4 | The Silent Explosive | comic story | 6 | | Yank Wilson; Terro (villain, introduction, death) |
| 5 | Lost in Time | text story | 2 | script: Richard Paul (signed); letters: typeset | |
| 6 | Headless Men of the Gold Comet | comic story | 6 | script: Fletcher Hanks; pencils: Fletcher Hanks; inks: Fletcher Hanks; letters: Fletcher Hanks | Space Smith; Dianna; The Thinker (villain, introduction) |
| 7 | - | comic story | 6 | script: Toni Blum; pencils: Bill Bossert; inks: Bill Bossert | Captain Kidd |
| 8 | - | comic story | 4 | script: Fred Schwab; pencils: Fred Schwab; inks: Fred Schwab; letters: Fred Schwab | Professor Fiend |
| 9 | The Mad Giant Experimenter | comic story | 6 | script: Fletcher Hanks; pencils: Fletcher Hanks; inks: Fletcher Hanks; letters: Fletcher Hanks | Stardust; The Mad Giant (introduction); Kamet (introduction) |
| 10 | The Problem of Prince Pizga | comic story | 7 | pencils: Henry Kiefer; inks: Henry Kiefer | Sub Saunders; Thetis (introduction); Prince Pizga (villain, introduction, death) |