| 0 | - | cover | 1 | pencils: Alex Kotzky; inks: Alex Kotzky | Uncle Sam; Buddy [Buddy Smith]; G-2 [Captain Don Leash]; Destroyer 171 crew; Sally O'Neil; Kid Patrol; Quicksilver [Max Crandall]; Salty Waters |
| 1 | Briefcase at the Hotel Bizum | comic story | 11 | pencils: Art Seymour; inks: Art Seymour | Uncle Sam; Buddy [Buddy Smith]; Captain Ivan (introduction); the Nazis (villains) |
| 2 | The Midget | comic story | 1 | script: Jack Cole; pencils: Jack Cole; inks: Jack Cole | Windy Breeze |
| 3 | Ghost Ship in the Yukon | comic story | 7 | script: Fred Guardineer; pencils: Fred Guardineer; inks: Fred Guardineer | Quicksilver [Max]; Shoshone (Indian man); Mrs. Bailey (introduction); Mrs. Bailey's son (introduction); the Japanese (villains) |
| 4 | The Murderous Three | comic story | 6 | pencils: Rudy Palais; inks: Rudy Palais | The Unknown; The Murderous Three [Piano Charley; Marion Wells; the Dutchman] (villains, introduction for all, all die) |
| 5 | The Reanimation Formula | comic story | 6 | script: Sid Lazarus; pencils: Sid Lazarus; inks: Sid Lazarus | Prof. Noodle (first appearance); Morguen (first appearance); Zambini (first appearance);Zambini's wife (first appearance) |
| 6 | - | comic story | 1 | script: Bernard Dibble; pencils: Bernard Dibble; inks: Bernard Dibble | Salty Waters; Captain |
| 7 | Kapitan Feltig vs. Lt. Commander Blake | comic story | 7 | pencils: Jon Blummer; inks: Jon Blummer | Kapitan Carl Wilhelm Feutig (first appearance; villain; death); the Nazis (villains); Lt. Commander Harvey Blake (first appearance) |
| 8 | Queen of the Beggars | comic story | 8 | pencils: Al Bryant; inks: Al Bryant | Sally O'Neil; The Beggar Queen and her gang (first appearance; villains); Blind Sam (first appearance; villain); Dopey (first appearance; death) |
| 9 | Smoke in Your Eyes | text story | 2 | letters: typeset | Randall Holmes (squadron leader); Mel Handley (squadron leader); Lieut. Moran |
| 10 | The Case of the Yoga Yeggs | comic story | 5 | script: Vern Henkel; pencils: Vern Henkel; inks: Vern Henkel | Chic Carter; Repulsive Reardon (first appearance; villain); Loathsome Louie (first appearance; villain); T. Hamadraba (first appearance; villain) |
| 11 | - | comic story | 1 | script: Gill Fox; pencils: Gill Fox; inks: Gill Fox | Cyclone Cupid |
| 12 | Case No. 10 | comic story | 9 | pencils: Louis Zansky; inks: Louis Zansky | G-2 [Captain Don Leash]; Fraulein Thura (villain, introduction, Nazi spy chief); Kurt (villain, introduction); Ebo (villain, introduction) |