The sinister Shadow King is desperate to escape from the mental prison he was placed in centuries ago - and he'll destroy Storm to do it! But will his freedom also unleash the horrifying swarm of the alien Brood? And, will even the X-Men be enough to battle a being who has plotted our death and destruction for ages? Then, regrouping after the devastating battle against Apocalypse, the X-Men encounter a new adversary which seems unstoppable. To fight it, the young mutants must ask themselves: How far are they willing to go and what are they willing to take to raise their game? The answer will test the bonds and shake the team to its very core. Collects Ultimate X-Men #89-97.