La vida del escritor de libros infantiles Stephen Lewis da un giro de 180 grados cuando, durante una compra rutinaria en el supermercado, pierde a su hija Kate, de cuatro años.
It is London in the year 1960 and John Saunders enthusiastically begins his new teaching career at a tough slum-area school. His class are bored pupils in their last term before leaving. Will he handle the grave problems that lie ahead?