The operation to rescue Tumb from the Nazis hiding in Argentina has derailed dramatically, and now Sonny, too, is a prisoner. That leaves Buck and Mossad agent Beata to continue the search, both for their friends and for the secret Nazi base. A mission that is becoming more urgent by the hour, as this remnant of the Third Reich managed to escape with some of their secret weapons at the end of the war, and are preparing for a major operation.