Beijing, 1938. China's top quantum physicist is captured by the Imperial Japanese Army and forced to develop a superweapon powered by the theoretically unlimited zero-point energy source and Atomic Robo is volunteered for the secret mission to bring him back.
Luckily, Robo's got help from an old flame, Helen The Nightingale McAllister, and her new flame Chen Zhen from the Chinese Resistance. And, begrudgingly, Chen's allies, the Ghost Bandits, who are completely and totally 100% trustworthy-why would you even worry about it?