Friendship, danger, and a drive to prevent Asgard's fall at all costs. One Ragnarok threat is eliminated, and another creeps to the surface. Loki's three monster children, Fenrir, Hel, and Jormungandr, writhe within their realms, a stirring that threatens Asgard's downfall. Under Thor's leadership, it's Kara's new task to squash their actions before it is too late. Harassed by a Ratatoskr's...