Li Xuewen traveled through the famine of 1960 and activated the canteen system. He used the "100% discount" to buy modern food and made up lies to feed his family. By recycling medicinal materials and making connections, he became a buyer, helped his eldest brother start a family, and fought back against his best relatives. Eventually, he upgraded the canteen to a supermarket, led his family to build a red brick house, and achieved a class leap.