"The Sound Barrier" shows the steps taken during the early 1950's to work towards blasting through the sound barrier. Chuck Yeagar is the pilot in this exciting but dangerous undertaking and is interviewed at length. Adding to some of the most important archives in history. The aircraft had to be jet powered, have a narrow wing and released from the underbelly of a B52. Highlights include the interviewing of Chuck Yeagar and of course when the speed of sound is breached.