Top Secret Missions of the CIA

Soviet foreign diplomat Alexsandr Dmitrevich Ogorodnik became the CIA's most valuable spy; case officer reports on U.S. medical students trapped in Grenada.

Oleg Penkovsky, a colonel with Soviet military intelligence who worked with the CIA; officer Robert Rayle sneaks Stalin's daughter out of India.

Lt. Col. Pyotr Popov worked with the CIA until his execution in 1960; CIA officer Chip Beck rescued more than 200 people from genocide at the Killing Fields.

How the CIA caught a spy within its Counterintelligence Division; ``Operation Gold,'' a plan to tunnel under the Berlin Wall where phones could be tapped.