Returning youth Gu Chao returns to the ancient town's Gu watch repair shop, wanting to use Guochao remodeling crafts to give domestic vintage watches a new lease of life. He clashes in concepts with his uncle who guards traditional old rules, and with the help of blogger A Yue, overcomes public opinion controversy, polishing the remodeling craft. The two generations of artisans go from divergence to reconciliation, and the old shop is transformed into a Guochao exhibition hall, letting dust-laden domestic vintage watches bloom with brand-new brilliance in the new era.