Derek Fletcher's inheritance seized by uncle Frank Fletcher and aunt May Fletcher. Blood on palm awakens Mystic Ocean Realm, granting him ability to sense premium seafood. He faces harassment from ex-fiancée Pan Jinfeng and bully Chad Zhao, with only doctor's daughter Mia Lin offering support. Relying on his ability, Derek foils Chad Zhao, Tyrant Ba, rivals, exposes relatives, founds a cooperative, leading fishermen to prosperity. He marries Mia Lin, achieving his comeback.