Drug addiction. Criminal behaviour. Murder... and all before his sixteenth birthday.

From foster home to children's home to living rough on the streets, Cain never had a normal childhood. By the age of 8 he was carrying a knife. Seven years later he was serving time for killing someone.

Based on real events, ex-prison officer Ronnie Thompson tells Cain's shocking story and reveals what really happens to teenage offenders both on the streets and once they're behind bars.

Prison riots, assaults on officers, roof-top protests and brutal acts of violence - this is an inside account of life in a young offender's institute and of an angry young man spiralling dangerously out of control.