In the Viking Age in Norway, sisters Sn frid and White-Star have taken different paths in life. Sn frid is a witch and medium to the Gods, while White-Star has turned into an outlaw viking. After White-Star kills the son of the king during a battle, the insane Queen Gunhild gives Sn frid an ultimatum: the queen will have Sn frid's husband killed, unless Sn frid assassinates her own sister.