| Issue | #4 |
| Published | February 2006 |
| Cover Price | 2.99 USD; 4.00 CAD |
| Pages | 36 |
| Editing | Eddie Berganza; Jeanine Schaefer (assistant) |
| Notes | Two covers were initially done for this issue; one by Churchill/Rapmund featuring Supergirl and members of the JLA, and an alternate one by Churchill featuring Dark Supergirl and Lex Luthor (10 issues for 1 issue mixture). This issue went on sale 2006-02-08. |
| Characters | Supergirl; Wonder Woman; Hawkman; Black Canary; Superman; Green Lantern [John Stewart]; Batman; Flash [Wally West]; Martian Manhunter |
| Genre | Superhero |
| Pencils | Ian Churchill |
| Inks | Norm Rapmund |
| Colors | Beth Sotelo |
| Letters | typeset |
| Notes | Two covers were initially done for this issue; one by Churchill/Rapmund featuring Supergirl and members of the JLA, and an alternate one by Churchill featuring Dark Supergirl and Lex Luthor (10 issues for 1 issue mixture). This issue went on sale 2006-02-08. |
| Reprinted | in Supergirl: Power (DC, 2006 series) #nn [minus all text and the UPC] |
| Characters | Dark Supergirl; Lex Luthor |
| Genre | Superhero |
| Pencils | Ian Churchill |
| Inks | Ian Churchill |
| Notes | Inspired by the classic cover of Action Comics #346 by Curt Swan and George Klein. This alternate incentive cover was announced at the DC Retailer Summit on 2005-09-20 after the original solicitation, with more details given in a press release on 2005-10-20. |
| Reprinted | in Supergirl: Power (DC, 2006 series) #nn [minus all text (except dialog (which has different lettering) and Featuring box) and the UPC] |
| Characters | Supergirl [Kara Zor-El]; Lex Luthor; Dark Supergirl; Green Lantern [John Stewart]; Starfire (cameo); Hawkman; Black Canary; Flash [Wally West]; Martian Manhunter |
| Synopsis | Dark Supergirl confronts Luthor. They fight, and Luthor flees after she destroys his glove. She flings him into the Watchtower on the moon, where he is confronted by Green Lantern. Dark Supergirl catches up, takes GL's ring, and uses it to knock him out. Meanwhile, Starfire awakens Supergirl, and she seeks out Dark Supergirl. Back in the Watchtower, Luthor uses the JLA transporter to go back to Earth, as Hawkman tries to stop him. After defeating Hawkman, Black Canary, Flash, and Martian Manhunter, Dark Supergirl is confronted by Supergirl. |
| Genre | Superhero |
| Script | Jeph Loeb |
| Pencils | Ian Churchill |
| Inks | Norm Rapmund |
| Colors | David Morán |
| Letters | Richard Starkings |
| Notes | Story continued from previous issue and continues in the next issue. Credit to "Brad Meltzer... JLA Expert". |
| Reprinted | in Supergirl: Power (DC, 2006 series) #nn [minus the title, credits, and next issue blurb] |
| Notes | Ads for next issue, The Warlord #1, Hawkman #47, Infinite Crisis #3, and JLA Classified: Cold Steel #1. Appears on page 34 in this issue. |
| Notes | House ads for: JSA #82-87, Batman: Secrets, The Omac Project Infinite Crisis Special, Crisis on Multiple Earths: The Team-Ups Vol 1/Superman: True Brit/Villains United (1/2 page), and Rann-Thanagar War Infinite Crisis Special. Appear in various places in this issue. |
| Notes | Total of 5 one-page, 1 two-page, and 1 half-page ads for: Kameo: Elements of Power (game, Microsoft Game Studios), Jakx Combat Racing (game, Sony), neopets: The Darkest Faerie (game, Idol Minds, 2 pages), Batman: The Animated Series Volume 4/Superman: The Animated Series Volume 2 (TV DVD, WB, 1/2 page), Greg Hastings' Tournament Paintball Max'd (game, Activision), Kong The 8th Wonder of the World (game, Ubisoft), and Hubba Bubba Max (gum, Wrigley's). Appear in various places in the issue. |