Lychee buyer Shen Yan went to the countryside with a price-guaranteed cold chain plan. Zhou Guilan of Xitou Village gullibly believed peddler Zhao Jinbiao's verbal high price and incited the villagers to refuse signing the contract. After the market plummeted, the entire village's lychees suffered unsalable stagnation and heavy losses, while the neighboring Hengtang Village secured stable income relying on the price-guaranteed cooperation. Shen Yan ignored past grudges to redistribute surplus stock and exposed Zhao Jinbiao's fraud truth. Xitou Village deeply repented and promoted standardized cultivation, built an origin pre-cooling warehouse, formed a multi-village lychee industry alliance, and achieved increased villagers' income through standardized production and marketing, walking the wealth-generating road of cold chain revitalizing agriculture.