In Egypt, 1942, the Bat has been ordered to work with two new partners, the Clock and the Owl, as a group codenamed the Unholy Three. Their mission is to find Jack the Grin, a smuggler who has stolen information about an unidentified German secret weapon. They are in a race with the Germans, who are also looking for Jack to recover the plans. They succeed and discover the German weapon is an "Übermensch".