The young Temujin (Omar Sharif) sees his father tortured and killed by a rival tribe led by Jamuga (Stephen Boyd). Held prisoner, he is yoked into a large wooden wheel around his neck and tormented by the tribal children. He meets the young Bortai after an act of kindness to her, but is punished by Jamuga. Temujin then escapes and hides in the hills, followed by Geen and Sengal, who pledge their allegiance to the man vowing to unite all the Mongol tribes.