Fishing village youth Lin Hai, in order to gather money for his mother's medical treatment fees, partners with his second uncle Lin Fugui to go out to sea to catch fish. The two accidentally catch a rare bahaba fish worth one million, and the second uncle, to monopolize the huge sum, commits a ruthless murder, pushing Lin Hai into the deep sea. At the verge of death, the ancestral jade pendant on Lin Hai's chest awakens the Dragon God inheritance. Lin Hai gains the extraordinary ability to control the ocean, see through the deep sea, and perceive rare treasures in the sea, escaping death. Burdened with the betrayal vengeance of his close kin and the heavy responsibility of saving his mother, Lin Hai relies on the Dragon God's supernatural powers to catch rare seafood, rapidly accumulating wealth. While hurrying to make money to treat his mother and collecting evidence, Lin Hai is determined to take revenge and wipe out the grudge.