Young Agent X-15 aced the requirements for joining the Coordinated Office of Law Enforcement, a.k.a. the COOL Agency, in her hometown. She is code-named after the high-flying rocket plane of the 20th century due to her fast thinking. As a rookie she takes down a bicycle rustling ring, and earns the respect of her fellow agents and the chief. Then, bizarre robberies begin. The victims report attacks by a peculiar woman who turns her back to them and releases powerful noxious gas Agent X-15 realizes that the criminal is a vain nemesis from her high school days who uses the extreme power of her butt. The self-aggrandizing criminal and her greedy goons want the town to acknowledge her (cough) greatness. Now the COOL agents and their chief must rely on their youngest agent to outfox a criminal who raises a big stink. {A few illustrations show the action }