七旬老人胡远根孤身离家十多年,摇着一辆残疾车漂泊都市街头,虽身染沉疴,还坚持婉拒许多好心人的帮助,靠卖风车勉强度日。一次病重,胡远根被志愿者送到医院进行救治。从这位沉默而又刚毅的老人身上,志愿者发现了他不寻常的一段身世…… Seventy-year-old Hu Yuangen alone for more than a decade away, shaking a disabled car drifting urban streets, though with Shen Shen, but also insisted on the decline of many well-intentioned people, reluctantly by selling windmills. A serious illness, Hu Yuangen volunteers were sent to the hospital for treatment. From this silent and resolute old man, volunteers found out his unusual life experience ...