After being exploited by his uncle, Zhao Jingui, the orphan Zhao Haisheng decides to strike out on his own. Relying on his exceptional seafaring skills and honest character, he starts from a dilapidated wooden boat named Prosperity and builds his way up. After surviving the dangerous adventure at Ghost Gate Reef, he establishes Haisheng Ocean Fisheries Co., Ltd. and leads the local villagers to prosperity. Eventually, at a prestigious seafood expo, he astonishes everyone with a gigantic golden giant grouper, the undisputed king of fish, and donates it to a scientific research institution. From an orphan who was bullied and oppressed to a leading figure in the fishing industry, Zhao Haisheng achieves an extraordinary comeback, while the greedy Zhao Jingui and his son suffer the consequences of their own actions and end up bankrupt and destitute.