Lin Zhiyuan, a young man returning to his hometown, arrives home and opens his family's long-sealed old shop. The sign falls, and the old street lies deserted. In an old account book, he discovers the 'Four Treasures of the Old Street.' Joining forces with skilled artisans, agricultural producers, and cultural tourism partners, he repairs the street and lights it up despite misunderstandings, torrential rain, and feedback from the trial opening, helping Qingshiwan regain attention through distinctive agricultural products, hands-on craft experiences, and leisurely sightseeing.