One day, a mysterious green light engulfed the Earth, transforming all humans into stone statues. When teen genius Senku finally breaks out of his petrification after 3720 years, he finds himself in a world devoid of modern society – buildings have crumbled to make way for lush, untamed forests, and the only humans are a small group of villagers who subsist on stone-age technology. With the help of his new friends and his near-limitless knowledge of science, Senku sets out of rebuild modern civilization one invention at a time.