In the 1980s, in Haian Village, Shen Linchuan puts his gloomy past behind him and sets out from the tidal flats, relying on his extensive knowledge of the sea and his determination to work hard. Together with his childhood friends, he braves the waves, catches fish, discovers business opportunities, and gradually builds his fortune with his own hands. Along the way, he finds lasting love and understanding with the kind-hearted and independent Gu Qingyao, protects his family, and helps his neighbors. As the tides ebb and flow, a group of young people turn their lives into something vibrant through their diligence and hard work, forging a path of perseverance toward a brighter future.