October 1962: The world holds its breath under the threat of a nuclear war during the Cuban missile crisis. Behind the scenes, one of the greatest spies of the century plays a crucial role to help Kennedy stand up to Khrushchev. This episode of “Spies of War” reveals the remarkable achievements of Oleg Penkovsky, a Soviet officer working for the CIA. Discover how he betrayed USSR to be a mole to the West and relive his incredible life until its tragic end to see how he prevented World War III.