Roy Minton's play deals with the subject of youth imprisonment and its lack of actual rehabilitation practised during the 1970s in young offenders' institutions. The film also deals with racism, authority, gang rape and suicide. Hardened Trainee 4737 Carlin (Ray Winstone) arrives at a new borstal after allegedly brutally attacking a prison officer at his previous borstal. On arrival he is subject to abuse from the prison officers and Pongo (the Daddy) because of his previous reputation. Using the hostile environment to his advantage, Carlin decides to become “The Daddy” of his wing. One of the young inmates, Davis, is gang-raped by two other inmates and subsequently commits suicide in his cell, using a razor blade. (thetvdb.com)