Thor sacrificed himself to save the world. With him gone, his evil brother Loki attacks with the worst of Asgard. Can even Iron Man and Captain America stand up to an army of trolls, dragons and Asgardian wizardry? None will survive unless they can bring back Thor. But when Asgard's favorite son returns--whose side will he be on? And does anyone have the power to stop an Asgardian gone mad? Follow the incredible adventure of the greatest battle ever through the streets of New York City with the Ultimate Universe's Mightiest Heroes. Featuring Hawkeye and the Black Panther!