American Airlines Flight 77 slams into the Pentagon on America's darkest day of the 21st century. TWA Flight 800 explodes over Long Island minutes after leaving JFK. The supersonic superstar Concorde crashes into an airport hotel after a failed takeoff from Paris. All three air disasters made headline news around the globe, creating media frenzies, igniting conspiracy theories, and putting immense pressure on investigators. In this episode, we revisit these three accidents and follow examiners as they uncover the truth behind the tragedies.