| Issue | #12 |
| Published | October 2008 [August 20, 2008] |
| Cover Price | 2.99 USD; 2.99 CAD |
| Pages | 36 |
| Editing | Mike Carlin; Rachel Gluckstern (associate) |
| Notes | Cover forms a triptych with Trinity #10 and Trinity #11. |
| Characters | Batman [Bruce Wayne] |
| Genre | Superhero |
| Pencils | Andy Kubert |
| Inks | Andy Kubert |
| Colors | Edgar Delgado |
| Notes | Cover forms a triptych with Trinity #10 and Trinity #11. |
| Characters | Justice League [JLA; Batman [Bruce Wayne]; Black Canary [Dinah Lance]; Black Lightning [Jefferson Pierce]; Firestorm [Jason Rusch]; Flash [Wally West]; Green Lantern [John Stewart]; Hawkgirl [Kendra Saunders]; Red Arrow [Roy Harper]; Red Tornado; Superman [Clark Kent; Kal-El]; Vixen [Mari McCabe]; Wonder Woman [Diana Prince]]; Transmutato (Antimatter Earth); Crime Syndicate of America [Power Ring; Johnny Quick; Owlman; Superwoman; Ultraman] (Antimatter Earth; villains); Despero (villain); Morgaine Le Fey (villain); Enigma (villain) |
| Synopsis | The League battles the Crime Syndicate. |
| Genre | Superhero |
| Script | Kurt Busiek |
| Pencils | Mark Bagley |
| Inks | Art Thibert |
| Colors | Pete Pantazis |
| Letters | Pat Brosseau |
| Characters | Riddler [Edward Nigma]; Nightwing [Dick Grayson]; Robin [Tim Drake]; Madame Zodiac (villain); Penguin [Oswald Cobblepot] (villain); Mr. Freeze [Victor Fries] (villain); Carlo (villain); Morgaine Le Fey (villain); Enigma (villain) |
| Synopsis | Riddler tries to find the culprit behind the museum robberies... but all signs point to him. |
| Genre | Superhero |
| Script | Kurt Busiek (plot); Fabian Nicieza (plot; script) |
| Pencils | Mike Norton |
| Inks | Karl Kesel |
| Colors | Allen Passalaqua |
| Letters | Ken Lopez |
| Characters | Icon [Augustus Freeman IV]; Green Lantern [John Stewart]; Superman [Clark Kent; Kal-El] |
| Script | Dan Didio |
| Letters | typeset |
| Notes | Dan Didio talks about the new deal to incorporate the Milestone Comics characters into the DC universe. Hot list - BATGIRL #2, FINAL CRISIS: LEGION OF THREE WORLDS #1 and JUSTICE LEAGUE OF AMERICA #24. House ad for TRINITY #13. |