In the far future, Earth is a polluted hell with massive cities and a crime problem to match. Keeping the peace is the Tank police that literally use tanks as both their vehciles and main weapons with a nearly insane brutal dedication to their job. Leona Ozaki, joins them as the first female member, and must find a way to work with the others in her own style. That's something that has to be settled soon considering that the notorious Cat Girls and their dumb male partner are planning crimes that require Leon's skill to stop.
