Occupied Manchuria, 1938. Atomic Robo is volunteered for a new secret mission to track down China's top quantum physicist, who has been captured by the Imperial Japanese Army to develop a super weapon powered by the theoretically unlimited 'zero-point' energy source. Robo can't catch a break with these would-be conquerors and their bizarre energy sources, can he? Luckily, he's got some help from an unexpected but familiar face.