 A heinous crime has been committed in South Park: the chickens at a local farm have been molested by a pervert. The criminal leaves a note behind as a clue, forcing Officer Barbrady to admit his shameful secret: he s illiterate. The Mayor sends Barbrady back to elementary school to learn how to read before he can return to work. Desperate to stop the Chicken Lover before he strikes again, Barbrady enlists the help of the boys in piecing together the mystery.