KG and Ringy are searching for the greatest military nectar of their careers: a lost Nazi fighter plane that crash-landed in an Indiana cornfield. The boys are visiting the site of a once-secret Air Force base to locate the debris field of the crash and crack a decades-old mystery surrounding the missing plane's location. Finding an engine, wing or weapon from the plane would be the score of a lifetime -- and KG and Ringy are hot on the trail!