A Viking warrior named Kaelvid belongs to a Viking clan, famed as fierce warriors and guardians of the Fellfire, an ancient, living source of power said to be the last remnant of the God's flame. When a threat looms over the region, kaelvid tries to harness the Fellfire to protect his people but it spirals out of control, destroying his family and most of the clan. He survives, imbued with the power, but banished and cursed to walk the world unable to die.