Su Wan, an orphan in a fishing village, is driven out of her home by her aunt and uncle, left with only a broken boat and an iron fish fork. She accidentally awakens the sea god's trident left by her grandfather, gaining the ability to command sea beasts, and uses it to catch deep-sea treasures, staging a comeback to become the richest person in the fishing village. Su Wan leads the fishermen to form a joint household management group, build ice houses, venture into the far sea, and fight evil merchants, ultimately defeating the tyrant Boss Qian who monopolizes the fishing market, revitalizing the fishing village, and living happily ever after with her childhood sweetheart Gu Zhou.