After leaving the old factory, Lin Cheng takes over an abandoned warehouse and joins forces with several veteran coworkers to restore old lathes and rekindle traditional craftsmanship. Amid skepticism and adversity, they rely on experience and patience to fulfill demanding, high-precision orders. They bring back a master craftsman who had lost contact with them, gradually return overlooked artisans to the spotlight, and give the long-dormant old factory new hope.