Two men possess vital information on Russia"s Star Wars missile defense system. One of them is CARDINAL -- America"s highest agent in the Kremlin -- and he"s about to be terminated by the KGB. The other one is the American who can save CARDINAL and lead the world to the brink of peace . . . or war. Here is author Tom Clancy"s heart-stopping masterpiece -- a riveting novel about one of the most intriguing issues of our time.