随着市场经济的快速发展，西部地区的大部分年轻人为了生活前往发达城市务工。导致西部地区大量的老人和儿童留守在农村，通过一次对一群小学生采访，得知他们很多寄养在亲戚家，和父母很久不见一次，亲情间的联系仅靠通信设施。 片中主人公小舟住在外公家对母亲有着近乎病态的思念，主角他想成为司机因为他认为他能接他母亲回来，他用自制的客车去不断练习当一个司机，想象着自己的母亲就在这个车里

With the rapid development of the market economy, most young people in the western region go to the developed cities to work, leading to a large number of old people and children in the western region left behind in the countryside. Through an interviews with a group of primary school pupils, it is learned that most of them are fostered in their relatives'and seldom meet their parents for a long time. The family contact only relies on communication facilities. The leading role of the film, Xiaozhou, lives in his grandfather's and has an almost morbid thoughts for his mother. He expects to be a driver because he thinks he can pick up his mother back to home. He practices as a driver with a home-made bus and imagines that his mother is just in the bus.