Ryan and Colin Pyle bike to Inner Mongolia, bunking down for a night in a yurt village before visiting one of China's largest wind farms. Heading away from the idyllic grassland and rolling green hills they strike the world's largest traffic jam, where some trucks are stuck for 20 days. Forging slowly forward the Pyle brothers hit a nasty sand storm in Xinjiang province, before striking camp at the lowest landsite in China, 150 meters below sea level.