小城大市

In this episode, the members are split into four "families": the Yellow "toy shop" family (LI Chen, CHEN He, GUAN Xiaotong), the Red "wedding supply shop" family (WONG Cholam, Bosco WONG, YUAN Shanshan), the Green "accessory shop" family (ZHENG Kai, LU Han, Dilraba DILMURAT), and the Blue "grocery shop" family (DENG Chao, Carina LAU, WEI Daxuan). Through successfully completing missions, the family with the most "factories" will win to become the largest business.

“鸡毛换糖”是指在物资匮乏的年代，小商小贩走南闯北走街串巷，以红糖、草纸等低廉物品，换取居民家中的鸡毛等废品以获取微利，可以说是义乌小商品市场的雏形和基石。本期节目中，跑男团将与嘉宾们分成四大“小商品家族”，在一天的时间里跨越三十年，体验义乌商业的变迁发展。而首个任务就是重温鸡毛换糖，在街上收集从天而降的鸡毛。