Thor embarks with his Legion friends on an epic quest into the vast wilds of the Empire to try to find the ancient Destiny Sword and save the Ring. They encounter exotic lands, creatures and peoples beyond which they could have ever imagined, each step of their journey fraught with increasing danger. They will have to summon all their skills if they are to survive as they follow the trail of the thieves, deeper and deeper into the Empire. Their quest will bring them all the way into the heart of the Underworld, one of the seven realms of hell, where the undead rule and fields are lined with bones.