China's Double-11 festival, the equivalent of Black Friday in the U.S., is the largest shopping extravaganza in China. Every year after the event, the logistics network faces great pressure due to the massive number of orders. To improve package handling efficiency, Chinese logistics company Cainiao opened a smart warehouse with automated guided vehicles in the city of Wuxi, east China's Jiangsu Province. Join CGTN to see what happens inside the depot.