Age of Viking raids in England. As ruthless Viking raids devastate Northumbria, East Anglia and Mercia, Alfred the Great prepares to defend his kingdom Wessex from Norse invaders. At the same time a daunting warrior Uhtred who is born a Saxon but raised and trained by Vikings, claims his ancestral birthright to Bebbanburg. Fate crosses these heroes' paths, and an uneasy relationship begins with the religious king and the pagan warlord.