The series introduces Ultimate Nightcrawler and Mystique, expanding the Ultimate X-Men roster. Prelude story in Ultimate Universe: One Year In sets the stage for Wolverine's thrilling transformation.

A major villain is switching sides, giving the X-Men some incredible firepower. But is this new recruit really worth the cost ...

While Nightcrawler wants to help out, ... In 2008’s Ultimate X-Men #94, written by Aron Coleite and Mark Brooks, a rampaging Colossus even tears off Wolverine’s adamantium leg.

Ultimate X-Men #2 by writer and artist Peach Momoko, script adapter Zack Davisson, and letterer Travis Lanham opens with Hisako Ichiki, known in mainstream continuity as the mutant hero Armor, ...