Profil: A football journey across China in search of the nation's grassroots king of the pitch. Zhang Yunlong reclaims his identity as a footballer, while Fan Zhiyi and Guan Yue tour five football cities, Dalian, Jiangsu, Chongqing, Guangzhou, and Shanghai, aboard a quirky Didi car. Local legends show off their skills. Winners get on board, losers head back home.