Under pressure from the Russians, Cato is forced to send Erskine and Haber to Macau to obtain some plans detailing Japanese troop movements. As Macau is a neutral country, they have to be careful not to violate its neutrality. Erskine and Haber impersonate German gestapo agents and work through the German embassy. To help get the plans, they use the help of a local woman known as The Countess. Cato suspects that the Russians are somehow in league in with the Germans and so Lieutenant French is sent out to investigate a possible lead.
—jem