After accidentally drowning, Lu Lin is reborn in 1982, retaining the memories of his death and awakening on the very day his family is divided. When faced with the schemes of his second uncle, Lu Defu, he accepts the rocky tidal flats that everyone else despises. Thanks to the underwater vision granted by a black stone and his experience in coastal foraging and mechanical repairs, he progresses from catching stone crabs and tiger eels to landing large yellow croakers, leopard coral groupers, and a giant 150-kilogram grouper. He protects his wife, Su Xiu, and his daughter, Douya, repairs an old boat, builds a new house, constructs holding ponds, and defeats thieves and treacherous relatives. Finally, he turns his fortunes around by selling a single fish for 15,000 yuan, steering his impoverished family toward a golden age.