A British diplomat to a West Indian island nation finds his idyllic existence thrown into chaos when a large American drilling company finds a huge source of natural mineral water there.

Times are hard for habitual guest of Her Majesty Norman Stanley Fletcher. The new prison officer, Beale, makes 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 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.