In the northern wasteland after the advent of the Ice Age, young Lin Jianlu inherited the mantle of his grandfather's "ranger" and guarded the last refuge of mankind on the brink of the crisis of thawing permafrost. When he discovers the truth hidden in the "Foggy Eye", the mysterious observation station left behind by his grandfather - the glacier is melting much faster than expected, and the countdown to doomsday has begun. He must travel through abandoned cities occupied by mutated creatures, solve scientific mysteries left over from the old era, survive in resource-poor settlements, and face the struggle of human nature in desperate situations. This is a journey of survival that is a race against time, and it is also a journey of the soul looking for glimmers of light in despair.
