dennis potter be still the best playwright of the television age and this be his best work . set in the forrest of dean on a summer day during world war 2 and we follow the a group of child at play . but the child play have a tragic outcome . potter set out to challenge our perception a all the child be play by adult . ( colin welland and who play willie and in an interview at the time say that the play challenge the actor a well ) . it could have founder instead it draw you in until you only see child . child who be by turn nasty and nice and scared and brave and stupid and clever and bloodthirsty and imaginative . one of the best scene remain when three of the child play mum and dad adult play child play adult pure genius . the acting be first class . none of them have ever do anything well . an absolute must see .