When Dei the Wise promises his daughter's hand in marriage to Yesugei the Brave's eldest son Temujin, orphaned prince Jamukha sees his chances of marrying Borta slipping away. Desperate to win her back, he swears the blood bond with Temujin, hoping to steal Borta from him when they are camping together. But the spirits have their own plans for the new Mongol nation. Torn between his desire for Borta and his growing loyalty to his blood brother, Jamukha...