At the dawn of humanity, numerous dangers stalk the men who live scattered across the savage earth. Ker Jar is born outside a clan, in the heart of a family that has been exiled. The small human will grow up in conditions of extreme hardship in a valley cut off by an impassable range of snow topped mountains: la Diosa del Hielo. When the time comes for him to set off and leave behind his parents and their cave, Ker Jar will have to face up to countless dangers of a hostile environment and his curiosity will lead him to find out what lies on the other side of the Diosa de Hielo. He undertakes a journey full of risks from which there is no return and which will make him grow up.