Doomsday Plus One. When Doombots attack the FANTASTIC FOUR in the middle of the night and launch the Baxter building into space. Now the World’s Greatest Heroes must find a way to get back to Earth without destroying their home! But things take a turn for the worse when they realize that shooting a skyscraper into space was only a decoy for DOCTOR DOOM’s nefarious plans! Will the Fantastic Four survive re-entry? And if they do, will they have enough time to stop Doom?