Marvel Zombies: Dawn Of Decay #2

THOR vs. HULK: A ZOMBIE SMACKDOWN FOR THE AGES! Banner must get to Avengers Tower to make an antidote to the virus, but to get through the infested streets he'll have to travel as Hulk. The big green guy may be invulnerable to nasty bites, but he'd also rather smash the zombies instead of save them! Poor Groot needs to usher the uncontrollable beast through the horde, but his task is only complicated when an undead Thor shows up. If Groot wants to prevent Hulk from killing his fellow Avenger, he'll need to think fast!