Discover the true story of Dmitri Polyakov, the highest-ranking Soviet GRU officer to spy for the United States during the Cold War. For 25 years, Polyakov operated as a top CIA asset deep inside the Soviet military apparatus, providing classified intelligence on missile programs, armored divisions, and geopolitical strategy. Learn how this intelligence hemorrhage shaped global diplomacy and prevented conflict before American moles ultimately compromised his identity to the KGB.