 Just as World War II began to turn against them, Nazi Germany is suddenly aided by the Norse pantheon.However, Loki joins the Allies, and they prepare a last-ditch sneak attack against Valhalla called Operation Ragnarok.The story follows Captain Chris Turing, who is part of the team which is going to attack Valhalla and starts out with them traveling to their attack destination in a group of submarines hoping that what remained of the United States Surface Navy would be able to distract the Nazi and Norse pantheon forces.