After returning to 1983, Jiang Tao resolves to improve his family's life through coastal foraging. From collecting shellfish on the tidal flats to heading out to sea and hauling in fishing nets, he relies on his experience and hard work, joining several companions in enjoying bountiful harvests. Facing opportunities and challenges, he keeps his grandmother close to his heart and cherishes the bonds with those around him. Through the ebb and flow of the tides, he steadily moves forward, turning ordinary days into a colorful and fulfilling life.