In the prehistoric world, a Cro-Magnon tribe depends on an ever-burning source of fire, which eventually extinguishes. Lacking the knowledge to start a new fire, the tribe sends three warriors on a quest for more. With the tribe's future at stake, the warriors make their way across a treacherous landscape full of hostile tribes and monstrous beasts. On their journey, they encounter Ika, a woman who has the knowledge they seek.

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