Adaptation of David Walliam's children's book starring John Thomson, James Fleet, Rebecca Front, Warwick Davis, Catherine Tate and Walliams himself. Father and son, Len and Joe Spud, have very little but they become overnight billionaires when Len invents a new toilet roll. Joe now has everything he ever wanted - except a friend. The family butler helps Joe to transfer to the local comprehensive, where he he's sure he will make some pals, but Joe feels obliged to hide the fact that he's so wealthy. But how long can he keep it a secret?