 Two school inspectors (Phillips and Knight) come to the school to assess the performance of the staff with their control over the children. It is a constant battle between the kids and the teachers, with some teachers like Miss Short (Jacques) favouring the  hard- hitting  method while others such as Mr.Milton (Williams) favouring a less disciplinary approach. All this happens because the pupils want the headmaster (Ray) to stay. There is the  blossoming romance  story thread and the kids have fun sabotaging a piano, a rocket, and a play.