Set in a village in north China, a veteran leads villagers to raise productivity by scientific methods.
Mu Bai
杜天成
Youan Jiang
推广队员
Xin Ke
刘老二
Jiang Yusheng
江秘书
Fan Zhenggang
陈七斤
Zhang Fa
Qin Yi
Wei Yuping
Zhong Xinghuo
Fu Huizhen
Jin Naihua
Yang Mengchang
