When "Superman" appears in the skies of New York City, a bank robbery took place nearby. Investigating together with Inspector McCleed, Zenigata suspects that it's Lupin's doing, however Lupin himself finds the notion simply ridiculous. Checking the banks which have been robbed, Lupin finds a small supermarket at the center of the ring they make. Who is the guy posing as Superman? And how was he able to fly in the air?