The flying legend of the Golden Age is back in action in post-war Tokyo! Davy Nelson, the kid fighting ace of World War II, is embroiled in a conspiracy to return Japan to the horrors of the past under the rule of a mad shogun! Birdy, Airboy's miracle plane, is in the hands of the bad guys, and the Yakuza and an army of robotic killers stand in the way of a reunion!