In West Berlin, Amy Brecker, an American intelligence officer, takes a chance on a walk-in informant who says that the Soviets are going to simulate an "accident" that will cripple America's space-based defense program. From a Soviet silo on the Sea of Japan, a single missile rises. A hotline communique from Moscow insists that a mistake has been made; the Soviets are doing everything in their power to abort the "test" flight. Deep...