What happened to Slade Prison's most famous old lag in the years since he announced he was going straight?
Find out in this fictional biography of one of Britain's most warmly remembered criminals, from wartime evacuation to Wales and teddy-boy stardom in Muswell Hill to various spells at Her Majesty's pleasure and his present life in north London. An episode of Porridge follows.
Producer Kim Flitcroft ; Executive producer Leanna Klein Life beyond the Box: Margo is on New Year's Eve at 9pm