| Issue | #27 |
| Published | January 1989 |
| Cover Price | 0.75 USD; 1.00 CAD |
| Pages | 36 |
| Editing | Mike Carlin; Renee Witterstaetter (assistant) |
| Characters | Gangbuster [Superman; Clark Kent; Kal-El]; Guardian [Jim Harper] |
| Genre | Superhero |
| Pencils | Kerry Gammill (signed) |
| Inks | Dennis Janke (signed) |
| Characters | Superman [Clark Kent; Kal-El; also as Gangbuster]; Guardian [Jim Harper]; Lois Lane; Perry White; Allie; Lt. Higbee (first appearance); VILLAINS: Lex Luthor; Brainiac [Milton Fine; Vril Dox] |
| Synopsis | Gangbuster versus the Guardian... Round 2... and Guardian finds out the true identity of Gangbuster. |
| Genre | Superhero |
| Script | Roger Stern |
| Pencils | Kerry Gammill |
| Inks | Brett Breeding |
| Colors | Glenn Whitmore |
| Letters | John Costanza |
| Notes | Invasion crossover. Story continued from INVASION (DC, 1989 series) #2. Story continues in ADVENTURES OF SUPERMAN (DC, 1987 series) #450. |
| Notes | Invasion Aftermath recap. |
| Letters | typeset |
| Notes | Letters from readers - K.M. Mathews, Jonathan Stover, Chris Romano, Emiliano Feliberti III, The Weeping Willow, David Metz, Erin Roche, Alan C. Carroll, Coy Brown and Glenn Cooper. |