An elementary school located on the deep mountain is facing a crisis of being abolished due to population migration. The PE teacher is assigned to form a choir, and to win the national choir contest in order to solve such crisis. With limited resource and absolutely no music background, the PE teacher and a group of tone-deaf students start to prepare for the contest. On the contest day, the students hear other choir singing, they refuse to get onto the stage because they believe their voice is different therefore is wrong. The PE teacher has to lure the students to finish the contest. They do not win any place, but still get big applause from the audience. For the students from a small school, the applause from thousands of audience create a huge impact on them, which get the teacher to think if he can use choir to change the depressing situation of this school.