In the typhoon season of 1987, Chen Jianghe is reborn back to the fishing village. In his past life, he stole someone else's fishing boat and capsized, bearing huge compensation debts, leaving his family overwhelmed and miserable. After rebirth, he activates the good luck system, consuming good luck values to catch tides and hunt for treasures. He matches wits with villagers coming to collect debts, shakes off his scheming blind-date partner, and takes his younger sister to catch tides to pick green crabs, abalones, and tiger prawns, relying on seafood to make money and improve his family's condition. At the same time, he rescues Luo Xinghe who has fallen into the water. In the tides of the era, relying on the system's blessing and catching tides, he step by step changes the destiny of his whole family.