A mysterious knife-throwing viking warrior protects a young peasant woman and her young son from the clutches of a evil regent bent on claiming the title of king and the woman for himself.After the apparent death of her husband King Arald, a viking peasant woman, named Karin, takes her son Moki into hiding from Aghen, King Arald's enemy. But a mysterous stranger, named Rurik, begins acting as Karin's guardian, which evetually leads to a brutal showdown between Rurik and Aghen.