In the year 2000, fisherman Xu Haifeng was divorced by his gold-digging wife Wu Lijuan, leaving him in hardship with his daughter Niannian and his ailing mother. On the day of the divorce, Niannian brought back Ao Xue, a white dragon whom Xu Haifeng had saved five years ago. Having now taken human form to repay his kindness, she wished to marry him and care for the entire family. The two forged a dragon pact, and Xu Haifeng gained the ability to venture out to sea through dragon scales. He harvested various seafoods and gradually built up a seafood business. Wu Lijuan's plea for reconciliation was rejected, and Guo Jinwang, who attempted to monopolize market prices, lost his power. Xu's mother recovered, and Niannian smoothly went to school. As the family fortune stabilized, the family sensed a golden tide line, sailed into unknown waters, and discovered another crystal dragon palace, leaving a hook for the second season.