| Issue | #15 |
| Published | March 2008 [January 16, 2008] |
| Cover Price | 2.99 USD; 3.65 CAD |
| Pages | 36 |
| Editing | Mike Carlin; Elisabeth V. Gehrlein (assistant) |
| Characters | Challengers of the Beyond [Green Lantern [Kyle Rayner]; Donna Troy; Jason Todd]; Atom [Ray Palmer] |
| Genre | Superhero |
| Pencils | Pete Woods (signed) |
| Inks | Pete Woods (signed) |
| Colors | Brad Anderson |
| Characters | Challengers of the Beyond [Green Lantern [Kyle Rayner]; Donna Troy; Jason Todd]; Ray Palmer [Atom]; Queen Hippolyta; Holly Robinson; Mary Batson [Mary Marvel]; Harleen Quinzel [Harley Quinn]; Batman [Bruce Wayne] (Earth-51); Wonder Woman (Earth-51; flashback); Superman [Clark Kent] (Earth-51; flashback); Ray Palmer (Earth-51; flashback); Martian Manhunter [J'onn J'onzz] (Earth-51; flashback); Atomic Knights (flashback); Firestorm [Jason Rusch] (flashback); Karate Kid [Val Armorr]; Una [Luornu Durgo]; Buddy Blank; Buddy Blank's grandson; VILLAINS: Solomon the Monitor; Monitors; Monarch [Nathaniel Adam]; Superman-Prime [Clark Kent]; Forerunner [Viza Aziv]; Booster Gold; Donna Troy; Crime Society [Ultraman (Earth-3); Power Ring (Earth-3)]; Joker (Earth-51; flashback; dies); Brother Eye |
| Synopsis | Mary Batson lands on Paradise Island, and is rescued by Queen Hippolyta, the battle continues on Earth-51 and we learn what Ray Palmer has been up to all this time. |
| Genre | Superhero |
| Script | Paul Dini (head writer); Keith Giffen (story consultant); Tony Bedard |
| Pencils | Pete Woods; Tom Derenick |
| Inks | Pete Woods; Wayne Faucher |
| Colors | Pete Pantazis |
| Letters | Ken Lopez |
| Characters | Doomsday (origin); Superman [Clark Kent; Kal-El] |
| Synopsis | The origin of Doomsday. |
| Genre | Superhero |
| Script | Scott Beatty |
| Pencils | Jon Bogdanove |
| Inks | Jon Bogdanove |
| Colors | Hi-Fi |
| Letters | Ken Lopez |
| Editing | Elisabeth V. Gehrlein |
| Characters | Catwoman |
| Script | Dan Didio |
| Pencils | Stephanie Buscema; ? |
| Inks | Stephanie Buscema; ? |
| Colors | Stephanie Buscema; ? |
| Letters | typeset |
| Notes | Dan Didio continues his tour through the DC offices, checking in on Mike Marts, Simona Martore, Nachie Castro and Stephanie Buscema (John Buscema's granddaughter). Hot list - COUNTDOWN #15, JUSTICE LEAGUE OF AMERICA #17 and ROBIN #170. House ad for COUNTDOWN #14. |