In a fishing village in southern Fujian during the 1980s, Lin Fan receives nothing but a dilapidated boat and an ancestral bamboo fishing rod with special sensing abilities when the family divides its assets. His aunt Qian Cuihua constantly schemes against him. Using the rod to catch gigantic seafood, he establishes a fishing cooperative and makes connections with Hong Kong businessmen, only to be framed when someone maliciously drills holes in his boat. Together with Bai Xiuyun, who sincerely cares for him, he overcomes numerous crises, protects the livelihoods of the local fishing community, and confronts the hidden danger of the deep-sea rod's backlash, carving out a path to prosperity for himself and the young people of the fishing village.