| Issue | #4 |
| Published | September 2007 |
| Cover Price | 2.99 USD |
| Pages | 36 |
| Editing | Tom Brevoort; Molly Lazer (Assistant) |
| Notes | Cover sports "World War Hulk" trade dress. |
| Characters | Hardball; Hulk; Korg; Miek; Elloe; Hiroim |
| Genre | superhero |
| Pencils | Jimmy Cheung |
| Inks | John Dell (?) |
| Colors | Justin Ponsor (?) |
| Letters | Typeset |
| Notes | Cover sports "World War Hulk" trade dress. |
| Genre | superhero |
| Pencils | Stefano Caselli |
| Inks | Stefano Caselli |
| Colors | Daniele Rudoni |
| Letters | Typeset |
| Characters | HEROES: Yellowjacket [Hank Pym]; War Machine; The Gauntlet; Justice [Vance Astrovik]; Henry Peter Gyrich; Baron Von Blitzschlag; Triathlon; Cloud 9; Hardball; Komodo; Trauma; M.V.P.; Rage; Slapstick; Thor Girl; Ultragirl; SHIELD; Iron Man; VILLAINS: Hulk; Warbound-- Korg; Miek; Elloe; Brood; Hiroim; CAMEOS: She-Hulk; Spider-Man; Luke Cage [Power Man]; Spider-Woman; Dr. Strange; Bengal; Constrictor; Scarlet Spiders; Doc Samson; Ares; Ms. Marvel; Wonder Man; CAMEO FLASHBACK: Captain America; Namorita; Night Thrasher; Mr. Fantastic; Black Bolt |
| Synopsis | Hardball steals a dart of the power blocking nanotech for the mysterious stranger and replaces it with a dud; Vance and Cloud 9 travel to Kentucky to offer their condolences about M.V.P.'s unfortunate death to his family, but M.V.P. himself answers the door; The Hulk and his allies arrive on earth and start busting stuff; Iron Man arms his new Hulkbuster armor with a nanotech dart to steal the Hulk's powers, but when he tries to implement his plan, you guessed it, he uses the dud planted by Hardball; The Initiative members are assigned to crowd and damage control but decide to confront the Hulk directly. |
| Genre | superhero |
| Script | Dan Slott |
| Pencils | Stefano Caselli |
| Inks | Stefano Caselli |
| Colors | Daniele Rudoni |
| Letters | Virtual Calligraphy's Joe Caramagna |
| Characters | Hulk; Trauma; Bengal; Scarlet Spider; Constrictor |
| Genre | superhero |
| Pencils | Jimmy Cheung |
| Inks | John Dell |
| Colors | Justin Ponsor |
| Letters | Typeset |