Thor—Son of Odin, God of Thunder, Wielder of Mjolnir—is dead. It was only meant as a joke—but Loki’s harmless prank spirals out of control. Furious and heartbroken, the All-Father banishes Loki to Earth for his crime. A Valkyrie—Hel-bent on carrying out her oath to Thor—barges into Loki’s trailer home with his brother’s final words from the beyond: a plea to find a certain Dr. Jane Foster and pass the hammer Mjolnir on to its rightful heir. Blinded by grief over those he lost in the chaos wrought by Asgard, Tony Stark vows revenge on those who consider themselves gods. Determined to protect Earth from the might of this unpredictable alien power, Stark forges Asgard’s own weaponry into a lethal suit of armor, set on eradicating any tether between their worlds—consequences be damned. When Asgard looks to Loki for salvation, he must answer the question: Am I truly worthy?