In the wasteland after the nuclear explosion, radioactive fallout raged and civilization collapsed. Geological engineer Lin He, armed with dusty professional drawings and a deep understanding of the formation, lit a spark in despair. He led survivors with different personalities - the stubborn old professor Chen Moyan, the astute girl Su Tang, and the pragmatic descendant of miners Shi Lei - deep into the granite mountains. There is no plundering, only creation: using stratigraphic stress monitoring to avoid landslides, using mineral sorting technology to turn waste into treasure, and unexpectedly discovering that the roots of mutated plants can purify radiation. Starting from digging the first "rock shelter", Lin He used the geological hammer and the wisdom of circular economy to weave a self-sufficient ecological network deep in the rock formations, step by step, forging the dark underground into a fortress against the doomsday, and finally moving towards the grand blueprint of rebuilding the "waste vertical city". This is a survival revolution that uses rock formations as paper and engineering as pen.
