A monstrous kitty (photographed real cat in costume) rampages through Mousopolis, swatting planes and kidnapping beauty Rosie Rodent. Captain Charles Limburger and mouse scientist Dr. Varmint hatch a furry plan to stop the feline fury with yarn and catnip chaos. Pilkey's deadpan photo-parody roars with comic-book captions, a purr-fect spoof for Captain Underpants fans aged 4-8.