Ultimate Fantastic Four #31

It's the battle for the Baxter Building as the zombified F.F. break free and wreak havoc! Meanwhile, an alien object Johnny brought back from the N-Zone begins to grow...and will soon consume every living thing on Earth. Only man on Earth can stop it-Doctor Doom! Part 2 (of 3)

Characters: Doctor Doom, Franklin Storm, Human Torch, Invisible Woman, Maker, Mary Storm, Mister Fantastic, Thing, Zvilpogghua