Young Zhao Ergou bids farewell to the city and returns to his homeland, Qingniu Col, holding the "Book of Ancient Processing of Hundred Things" left by his grandfather, determined to revive the lost cultivation of Qingyu ginseng and ancient processing techniques. He joins forces with his childhood friend Niu Dahuang to reclaim barren old medicine fields, overcoming heavy tests such as poor soil, rainstorm disasters, and medicine merchants suppressing prices and compromising. He adheres to the whole set of traditional processes of washing, moistening, cutting, stir-frying, roasting, steaming, and sun-drying, refusing to cut corners on craftsmanship for profit. Later, with the help of short videos to record real labor, he makes the ancient medicinal fragrance seen by the public, unites with villagers to establish a cooperative, drives rural common prosperity, and guards his ancestors' craftsmanship and rural roots.