In the follow up to Shirow's classic anime, Al, Leona and their trusty steed, Bonaparte, continue to fight crime in New Port City, alongside the rest of the Tank Police. But a new threat appears in the form of a series of terrorist attacks, using the latest weapons technology. The Tank Police are out-numbered and out-gunned, but Al and Leona set out to discover who or what is behind these attacks. With massive explosions and high-speed chases, Leona often causes more damage than the criminals she pursues.