Paranoia was a prevailing theme during the Cold War, as depicted in Episode 2 of the free documentary series "MAD World - The History of the Cold War." The episode explores the intense fear and suspicion that plagued both the United States and the Soviet Union during this tumultuous period. It delves into the origins of this paranoia, including the fear of nuclear war and the spread of communism. Through interviews with experts and archival footage, the episode provides a comprehensive overview of the atmosphere of apprehension that defined the era.