Follow the latest quest for speed - to make "supersonic" speed practical, and "hypersonic" speed possible. Join us as we follow the latest experiments for the next generation of a supersonic passenger jet (High-Speed Civil Transport), and visit researchers who are working on an even more advanced high-speed concept - the Hyper X, designed to push hypersonic flight into the fiery inferno of Mach 8 ... and beyound. This is the story of courage, skill and determination which drove the early pioneers to fly faster than the speed of sound, and a celebration of the lives lost in solving the operational problems of the world's fastest fighter jets to make the SR-71 possible.