In the frozen tundra of the ancient world, a young woman named Eira must rise to the occasion and lead her clan of mammoth hunters through a perilous expedition to secure their food supply and ensure their survival. Facing treacherous blizzards, rival clans, and her own self-doubt, Eira must draw upon her father's teachings and her own indomitable spirit to overcome the challenges and emerge as the new leader of the mammoth hunters, inspiring future generations with her courage and resilience.