| Issue | #670 |
| Published | October 1991 |
| Cover Price | 1.00 USD; 1.25 CAD |
| Pages | 36 |
| Editing | Mike Carlin; Dan Thorsland (assistant) |
| Notes | 1991 Triangle #34. |
| Characters | Superman [Clark Kent; Kal-El]; Flash [Wally West]; Green Lantern [Guy Gardner]; Power Girl; Waverider [Matt Ryder]; Guardian [Jim Harper]; Gangbuster [Jose Delgado] |
| Genre | Superhero |
| Pencils | Dan Jurgens (signed) |
| Inks | Bob McLeod (signed) |
| Colors | Glenn Whitmore |
| Notes | 1991 Triangle #34. |
| Characters | Superman [Clark Kent; Kal-El]; Batman [Bruce Wayne]; Wonder Woman [Diana]; Martian Manhunter [J'onn J'onzz]; Green Lantern [Guy Gardner]; Booster Gold [Michael Jon Carter]; Power Girl; Guardian [Jim Harper]; Deadman [Boston Brand]; Dr. Fate; Professor Emil Hamilton; Lois Lane; Dr. Leung; Allie; Perry White; Sam Foswell; Mr. Ling; Elroy (cat); VILLAINS: Parasite [Rudy Jones]; Atomic Skull [Joe Martin] (first as Atomic Skull); Monarch [Hank Hall]; Lex Luthor (first appearance of Lex's "son"); Gretchen Kelley; Sydney Happersen |
| Synopsis | Superman and the other heroes clean up Metropolis after Armageddon. Joe Martin's metagene is triggered, turning him into the Atomic Skull. |
| Genre | Superhero |
| Script | Roger Stern |
| Pencils | Bob McLeod |
| Inks | Denis Rodier |
| Colors | Glenn Whitmore |
| Letters | Bill Oakley |
| Notes | Story continues in SUPERMAN: THE MAN OF STEEL (DC, 1991 series) #5. |
| Script | Dan Thorsland |
| Letters | typeset |
| Notes | Letters from readers - Simon DelMonte, Charlie Harris, Chuck Dill, Jon Lane, Paul Chin, Joe Frank and Rol Hirst - and responses from Dan Thorsland. |
| Genre | Adventure |
| Notes | Ad for 3 Musketeers. No. 6 in a series. On back cover. |