After twenty years, eighty-years-old’s Ren Zhongyuan coming back to Saihanba. Sixty years earlier, in his twenties, it was all desert. No one could believe that 300 people can make this curse land into one of the biggest forest in china. As a young engineer, Ren redesigned the old planting machines by himself, and fall in love with the nature he helped to create. Walking again between the trees makes him thinking about his age, his love, his art, his challenge, and his glory.

二十年后，八十岁的任仲元再次回到塞罕坝。六十年前，二十岁的他来到这里的时候，这里的一切都是沙漠。 没有人能相信这300人可以将这片诅咒之地变成中国最大的森林之一。 作为一名年轻的工程师，任老独自重新设计了投苗植树机，并爱上了这个地方。 如今，再次在树林间散步的任老，思考着他的年龄，他的爱，他的艺术，他的挑战和他的荣耀。