Fisherman Zhang Yang is plotted against by his wife and a close friend, encountering a shipwreck and dying before awakening the Sea King System, which allows him to fluoroscopically detect various rare seafood in the sea. He struggles to survive with his daughter Tongtong, going out to sea to catch precious catches to make a comeback and rise up, while fighting against the constant harassment and revenge of his ex-wife and rivals. He gets acquainted with business powerhouse Su Jin, joining hands to resolve marine crises and business traps, excavating treasures from sunken ships on the seabed, reaping wealth and true affection in successive marine adventures, and ushering in his own brand-new life.