Nearly twenty years after the catastrophic crash of one of the most famous commercial airplanes in the world, this documentary examines the wreckage at the crash site and on the runway and through the information on the black box recorders. French and British air crash investigators slowly pieced together findings from a dramatic and bizarre sequence of events that proved controversial. With key interviews from crash investigators, Concorde pilots, and the air traffic controller that day, the documentary tells the gripping and tragic story of what really happened to Concorde Flight 4590.