Pink muhly grass brought a big change to Dai Erniu's village. More and more people living in urban areas traveled here to enjoy the beautiful countryside scenery. Villagers began to run village inns or restaurants to make money, only Dai Erniu's father was still immersed in his "grass skateboard experiments," and paid no attention to those money-earning opportunities. Dai Erniu was the only supporter for his father. One day, after another fruitless experiment, Dai Erniu found a mobile phone which is rare to see in his village. He kept it, hoping to find the owner, and embarked on a troublesome journal back and forth between the village and the city.

大片大片明艳妩媚的粉黛乱子草，让红草坝成了乡村旅游的新热门景点。但岱二牛的父亲岱成材却沉浸在自己的"滑草板"实验中，对眼前的致富机会视而不见。瘦小细弱的岱二牛成了爸爸宏大理想的支持者。在一次失败的滑草实验后，岱二牛捡到一只昂贵的手机。为了归还这只手机，岱二牛开始在乡村和城市间奔走......在这个过程中，朋友的陪伴，老师的关怀，还有与陌生人之间发生的故事，都给岱二牛上了人生中珍贵的一课。