The Vikings, that are well known from "Cultures - Discovery of Vinland" now spread over Europe and the Middle East. It's around the end of the first millennium. The story starts when Bjarni, the leading character of part 1, gets a sinister vision of Ragnarök, the final battle in the Norsemen's mythology. In his vision Bjarni makes out himself fighting side by side together with three unknown heroes that he has never seen before. They fight against the terrible Midgard snake to prevent the end of the world.