官方公布的主要简介说的是The sisters come back to Delores's show to get her back as Sister Mary Clarence to teach music to a group of students in their parochial school which is doomed for closure. One of the girls, who is the most talented of the bunch, is forbidden to sing by her mother, although the choir has made it to the state championship. A group of stereotypical incompetent monks tries to stop them.
