As WWII comes winding down, rising atomic fears set the stage for Soviet espionage efforts at the opening of the Cold War. An unspoken race begins with the USA, United Kingdom and the Soviet Union vying to create the world's first super-weapon. New York becomes a hotbed of spy games, and soviet spies like Rudolph Abel weave intricate legends so they can work deep undercover. As the Soviet Union falls, old clandestine programs and covert operations are brought to light thanks to a collection of files called the Mitrokhin Archives.