For ages, Odin has protected his kingdom of Asgard. But his strength must rest and regain for one week, every winter. In this period period, most of Asgard's foes (including trolls, giants, dark elves, and demons) make an effort to claim the kingdom for their particular, but they're always stopped by Odin's son, the mighty Thor, albeit with the loss of many brave Asgardian warriors. Loki, god of mischief, has contested Dr. Bruce Banner and attracted him into Asgard with the help of both Amora, once Thor's enthusiast, now the supervillain called the Enchantress. Loki makes Banner angry and he changes into the Hulk. The Enchantress then throws a spell across the Hulk which grants Loki dominate and divides his and Banner.