The Marvel Zombies make their monstrous debut, courtesy of the blockbuster creative team of Mark Millar and Greg Land! In their short careers, the Ultimate Fantastic Four have seen a lot of amazing things -- but nothing will prepare them for what they are about to encounter! Reed Richards has used his scientific genius to contact an alternate Earth, and he's ready to pay them a visit! But while this parallel dimension and its own First Family may be surprisingly familiar, there's a frightful twist! Beginning the storyline that birthed the Marvel Zombies franchise, it's one of the all-time great Marvel comic books, boldly re-presented in its original form, ads and all! Reprinting ULTIMATE FANTASTIC FOUR (2003) #21.