Accidentally traveling through a prehistoric world where giant beasts run rampant, Lin Ye has nothing at all, except a weak electrical superpower and a brain filled with modern knowledge. With no heaven-sent opportunities and no strong reliance, he starts from chopping wood and grinding stone tools, groping step by step to smelt iron tools, from developing simple herbal medicines to conquering antibiotic drugs, with his own strength, opening the path of primitive technology on the wild land.