On the day of his engagement, poor fisherman Pei Haiwang is betrayed by his fiancée, Du Yuejuan, and his cousin, Pei Jinshui. They tie an iron anchor to him and sink him into the deep sea, stealing his fishing boat's registration documents and the money meant to save his mother's life. On the brink of death, a golden divine dragon grants him the physique of a Sea God. With the power of sea creatures, he can use an octopus to break chains and lift fishing cages, an orca to locate schools of fish, a shark to find stolen goods, an electric eel to restart a boat, a king crab to pull down submerged cages, a sailfish to cut through wind and waves, and a sea turtle to block dangerous currents. Finally, the divine dragon summons eight boats to unleash a golden fishing frenzy. After surviving this near-death experience, Pei Haiwang uses the power of sea beasts to turn his fortunes around. He reclaims his old boat and joins forces with seafood buyer Lu Mingzhu to establish a direct-sales stall, a fresh seafood warehouse, a cold-chain distribution network, and an offshore fishing fleet. Starting with a single battered boat, he rises to become the new fishing king of Dragon King Bay.