Su Mai, who is studying design away from home, receives an urgent phone call and rushes back to Zhuxi Village, only to discover that her grandfather is seriously ill and being held captive in the woodshed, while the Su family's ancestral bamboo-weaving workshop has been seized by her cousin, Su Dawei. Determined to protect three generations of intangible cultural heritage and save her family's business, she picks up the bamboo knife her grandfather left behind and rebuilds the workshop in an abandoned granary. With her exceptional craftsmanship and Zhou Yang's support, Su Mai exposes impostors, fights off greedy investors, and leads the villagers in turning bamboo weaving into a thriving industry. Even the family members who once turned against one another pick up their bamboo knives again, joining forces to protect their heritage and take the Su family's bamboo weaving from the countryside to worldwide fame.