Fishing village youth Li Haisheng is cheated out of his dividends by the Zhao family, receiving only a broken sampan bearing mysterious dragon veins, and accidentally awakens dragon clan abilities such as dragon eyes and dragon breath. He takes Zhao Wanqing out to sea to fish, relying on his supernatural powers to repeatedly reap large catches, earning money to cure his sick younger sister Li Xiaoyu, opposing a crowd of rivals including Qian Shun, Zhao Youfu, and Du Kui, going from a broken sampan to finally owning the large vessel Longteng, struggling at sea, protecting his family and lover, and carving out a successful career.