CIA's most valuable foreign agents are being methodically assassinated. With its intelligence network shattering, the Agency begins a desperate search to uncover the traitor within its ranks! The CIA's most valued Russian double agents are being assassinated one by one. In Langley Center itself, Jack Barrett, Director of Central Intelligence, barely escapes assassination. When the Agency discovers the attacks originate from a Russian top secret cyberwarfare program called Chernyy Almaz, or Black Diamond, they must respond swiftly to shut down the attacks and extract their top prized agents before they're lost forever. Chief among them is Dr. Armand Mishenkov, the head of Russia's research and development for cold fusion weaponry. Pursued by Russian assassins and Spetsnaz teams, Agent Dave McClure must find Mishenkov and smuggle him across Europe and to the United States-but can they make it alive?