Adventures of Ook and Gluk, Kung-Fu Cavemen from the Future

Hold onto your pants for this awesome adventure from the author of the million-selling Captain Underpants! Harold and George are back - presenting the sensational saga of two crazy kung-fu caveboys raising hell in 500,001 BC! Ook and Gluk have a pretty great life growing up together in Caveland, Ohio, even though they're always getting into trouble with their short-tempered tribal leader, Big Chie...