Ultimate Power + Ultimate Fantastic Four/X-Men
Reed Richards promised Ben Grimm he’d find a cure for his existence as The Thing, no matter how long he had to search. Here that search involves sending exploratory probes into alternate realities—with devastating consequences. Before long Earth’s heroes, including the Ultimates and the Fantastic Four, are visited by the super-powered heroes of one of those other realities: the Squadron Supreme. They intend to make Richards pay for his crimes, and when he sees the devastation he’s inadvertently caused, he’s not sure he doesn’t deserve his sentence.
This limited series is drawn by Greg Land in his photo-realistic style and written by a team of writers, including Brian Michael Bendis, Jeph Loeb, and J. Michael Straczynski.
One of Reed Richards’ former classmates blames him for her expulsion from the Baxter Building Think Tank, and she’s stolen the Cerebro technology from the X-Men (in the first part of this crossover, titled Ultimate X-Men/Fantastic Four) to get her revenge. Not only has she tricked the two teams into battling each other, but she’s now got the power to kill them all. Unless, that is, Reed Richards can prove that he’s smarter than she thinks he is.
This fast-paced story by Mike Carey, Pasqual Ferry, and Leinil Francis Yu features hero against hero, as in most crossovers, until they finally realize they must unite against a common—and far more deadly—opponent.