Norman Stanley Fletcher is sentenced to 5 years at HM prison Slade in darkest Cumbria, where he takes on a naive cell mate Lenny Godber and teaches him the ways of the prison, including skiving and scams. Meanwhile, prison officer Mr. Mackay tries to maintain order, but is often thwarted by the cunning of Fletcher and the vulnerability of Mr. Barroclough, who is easily taken advantage of.
New Year's Day, and Slade Prison has a new intake of three: old hands Norman ...