After years of protecting the Nine Realms, Thor returns to Asgard to find his kingdom in political turmoil and his father, Odin, gravely weakened. When a forgotten enemy Laufey rises with an army seeking to overthrow Asgard’s rule, Thor must rally his allies, including Lady Sif and the Warriors Three, to defend the throne. But as the battle rages, betrayal strikes from within, forcing Thor to confront not only the fall of his empire but the shocking truth about his brother Loki’s fate.