Once again, private eye Milo March, a Major in the Army reserves, is recalled by the CIA for a special mission. At a time when relations between the U.S. and Soviet Russia are somewhat relaxed, the Russians have asked a Syndicate-owned American company to send an expert to teach them how to build coin vending machines and plan where to install them. The CIA easily makes a deal with the Syndicate, and Milo is assigned to go undercover in the guise...