| 0 | - | cover | 1 | pencils: Creig Flessel; inks: Creig Flessel | |
| 1 | The Ski Murder | comic story | 6 | script: Gardner Fox; pencils: Fred Guardineer; inks: Fred Guardineer | Speed Saunders; Villain: A murderer (Intro); Introduction: Margot Lee |
| 2 | Crime Never Pays | cartoon | 0.67 | | |
| 3 | The Corpse in the Car Trunk | comic story | 6 | script: Will Ely; pencils: Will Ely; inks: Will Ely | Larry Steele; Villain: Baron Pakloff (Intro); Introduction: Lord and Lady Ashley |
| 4 | Nuggets of Lead | comic story | 6 | script: Homer Fleming; pencils: Homer Fleming; inks: Homer Fleming | Buck Marshall; Villain: Spencer (Intro) |
| 5 | The Zombie Killers | comic story | 6 | script: Jim Chambers; pencils: Jim Chambers; inks: Jim Chambers | Crimson Avenger; Wing; Villain: "The Boss" and his zombies (Intro for all) |
| 6 | Gambler's Waterloo | comic story | 6 | script: Tom Hickey; pencils: Tom Hickey; inks: Tom Hickey | Bruce Nelson; Villain: The XYZ Gang, Big Pete Rines (Intro for all) |
| 7 | Railroad Riddle | text story | 2 | script: Paul Dean | |
| 8 | The Celebrity Deaths | comic story | 8 | script: Jerry Siegel; pencils: Joe Shuster; inks: Joe Shuster | Villain: Dr. LaForge (Intro) |
| 9 | The Insidious Dr. Fu Manchu: Part 7 | comic story | 2 | script: Sax Rohmer; pencils: Leo O'Mealia; inks: Leo O'Mealia | Dr. Fu Manchu |
| 10 | Kops and Robbers | cartoon | 0.67 | script: Bob Kane; pencils: Bob Kane; inks: Bob Kane | |
| 11 | The Many Murder Attempts of McQuade | comic story | 6 | pencils: Sven Elven; inks: Sven Elven | Cosmo; Villain: McQuade (Intro) |
| 12 | In Two Billion A.D.: Part 1 | comic story | 13 | script: Jerry Siegel; pencils: Shuster Shop; inks: Shuster Shop | Slam Bradley; Shorty; Intro: Prof. Kenton, a bird-man, and an orange man; Villain: A flower-man (Intro) |
| 13 | Detective Puzzles | activity | 0.67 | script: A. W. Nugent; pencils: A. W. Nugent; inks: A. W. Nugent | |