In Germany, Lupin plans to steal the chest of a Hitler like leader named Generalissimo Hatler. The chest contains a 50-carat Ruby. But when he accidentally removed Hatler's toupee (which revealed he was bald) made Hatler order an army to wipe out Lupin and his gang. Lupin and Fujiko end up trap in an abandon castle. surrounded by Hatler's army. How will they escape?