Loki’s plan to awaken an ancient eldritch horror is finally set in motion. As he hunts the human hosts of Odin’s grandchildren before they can awaken to their true power. Angus finds himself trapped in the underworld, where the truth of his own identity sets him on a path to find his siblings and stop what’s coming. But Loki has already set something far worse in motion. As Loki's dark design of revenge against Odin’s bloodline continues, the god of mischief makes an ultimate sacrifice.