A Soviet spymaster launches an audacious plan against the American military The KGB calls it Amergrad. Buried deep in Siberia, just a few hundred miles from the Chinese border, it’s the most tightly guarded secret in the Soviet Union. Away from the frigid tundra, behind wall after wall of barbed-wire fence, is a perfectly ordinary small American city. It has gas stations, diners, movie theaters, and more cars than all of Leningrad. The residents speak English at all times, observing every custom of American life until it becomes second nature. When they graduate, they move to Tucson.   Two decades later, Tucson is the center of the American military-industrial complex, and graduates of Amergrad are in positions of power at every level. These perfect Soviet spies hold the keys to the American nuclear array, and their mission is about to begin.