The story of how America's supersonic dream ended and the battle between Russia's TU144 and Europe's Concorde. Concorde ultimately became the most luxurious airliner in the world but the supersonic dream still died. Could it be revived?

Go inside the race to build the first supersonic airliner between Europe's Concorde, the Soviet TU144 and the American Boeing 2707, and examine both the technical challenges and the international espionage behind this story.