Times are hard for habitual guest of Her Majesty, Norman Stanley Fletcher (Ronnie Barker). The new prison officer, Beale, makes MacKay (Fulton MacKay) look soft and what's more, an escape plan is hatching from the cell of prison godfather Grouty and Fletcher wants no part of it. The breakout is set for the day of a morale-raising football match between a "celebrity" football team and the inmates of Slade. Everything is going to plan until Godber (Richard Beckinsale) is injured on the goal post. In the ensuing confusion, Fletcher finds himself on the wrong side of the prison walls and must now try and break back into prison.