Almost as soon as the dust settled on World War II, the Cold War scorched with a different kind of intensity. But what were the United States and Soviet Union facing off about? And if they didn't use traditional weapons of war, what did they bring to the battle?

A War of Ideas -- From World War to Cold War -- Two Superpowers -- East vs. West -- Secrets and Spies -- The Arms Race -- The Cold War Heats Up -- The Wall Falls.