Lin Yue, a graduate student in science and engineering, encounters a thunderstorm and travels through the Neolithic Age. Armed with modern knowledge and rudimentary tools, he survives in a desperate situation in a primeval forest surrounded by mammoths and saber-toothed tigers. He made stone tools, built shacks, and purified water sources. After encountering the "Pan Stone Tribe", he used medical knowledge to resolve the plague crisis, upgraded stone tools with quenching technology, and taught the tribe how to make bows and arrows, engage in farming, and tame wild animals, gradually breaking down barriers.
Faced with the wizard's doubts about the "novel methods" and the resource plundering of the Black Teeth tribe, Lin Yue led the tribe to smelt iron ore, make iron tools, and form a tribal alliance to resist foreign enemies. From pushing primitive tribes towards farming civilization, to exploring mysterious rocks to find a way back through time, he wrote a passionate legend of modern people in the prehistoric world amidst the challenges of survival and the transition of civilization. He also faced the difficult choice of staying to create civilization or returning to modernity.