As a typhoon approaches, Mid-Autumn Festival crab prices surge all the way. Buyer Jiang Xuchuan returns to Qingyu Village to purchase swimming crabs, but faces resistance from villagers due to the price. He relocates to Haitang Village, winning trust through on-the-spot inspection, weighing, and cash settlement. Incited by Han Zhiwang, Qingyu Village gambles on high prices, but ruins its reputation by mixing in dead crabs, and suffers pond destruction from the typhoon. After the disaster, Jiang Xuchuan leads people back to the village for rescue, and everyone rebuilds the pond ridges and trading rules, also rediscovering human hearts scattered by profits.