| Unofficial Crack Comics Index |
Credits:
| Art | Lou Fine |
| Lettering | Lou Fine |
| Editing | Ed Cronin |
Feature Character(s):
Supporting Character(s):
- Doctor Foster (next in issue #21)
- Wendy Foster
Villain(s):
- The Hand and his agents (first appearance for all; German agents)
Other Character(s):
- President Franklin Roosevelt (kidnapped and replaced by a German agent)
Location(s):
- Washington, DC
Credits:
| Story | Fred Guardineer |
| Art | Fred Guardineer |
| Lettering | Fred Guardineer |
| Editing | Ed Cronin |
Feature Character(s):
Villain(s):
- Von Schtuck and German Saboteurs (first appearance for all)
Credits:
| Story | George Brenner |
| Art | George Brenner |
| Lettering | George Brenner |
| Editing | Ed Cronin |
Feature Character(s):
Supporting Character(s):
- Police Captain Kane
Villain(s):
- German saboteurs (first appearance for all)
Credits:
| Art | Vernon Henkel |
| Lettering | Vernon Henkel |
| Editing | Ed Cronin |
Feature Character(s):
- Don Q (first appearance; a State Department agent)
Villain(s):
- Squire Blackheath and German agents (first appearance for all; kill Don's father; dies)
- Thelma Blackheath (first appearance; working with her uncle)
Other Character(s):
- Don Q's father (first appearance; a noted State Department diplomat; dies)
Location(s):
- England
Credits:
| Art | Henry Kiefer |
| Lettering | Henry Kiefer |
| Editing | Ed Cronin |
Feature Character(s):
- Red Torpedo (Jim Lockhart)
Villain(s):
- Black Shark (builds an ice ray for the Nazis)
- Nazis (finance the Black Shark)
Location(s):
- Pacific Ocean
Comment(s):
- Henry Kiefer credited as Drew Allen.
Credits:
| Story | Art Pinajian |
| Art | Art Pinajian |
| Lettering | Art Pinajian |
| Editing | Ed Cronin |
Feature Character(s):
Villain(s):
- Saboteurs (first appearance for all)
Credits:
| Story | Paul Gustavson |
| Art | Paul Gustavson |
| Lettering | Paul Gustavson |
| Editing | Ed Cronin |
Feature Character(s):
Supporting Character(s):
- Chuck (Spider's chauffeur)
Villain(s):
- Van Horn and his gang (first appearance for all; kill the owners of a cursed jewel; several die)