Nine-year-old Lara is the daughter of the ri-the leader of her cattle-raising clan. While she spends her days tending to the cattle, her heart lies with her beloved gray mare. When Lara goes to the highlands to set the cattle out to graze, she finds the mare in the process of a difficult birth. Lara vows to take care of the foal as a dying promise to the gray mare, and with the help of a childless milk-cow, she cares for the spindly-legged filly. But just when she is confident that the foal can survive, a rival clan captures them both, and throws Lara's life into turmoil.