The X-Men take on Loki, god of mischief! In the Arctic Circle, Alpha Flight and the X-Men discover a power that could save the world - but are they willing to pay the terrible price? Is Loki truly trying to give Earth a godly boon, or are his motives darker than the heroes dare dream? And when the X-Men incur Loki's wrath, it's the vice New Mutants who take the fall...and rise to Asgard! The X-Men ride to the rescue, but what if the New Mutants don't want to go home?