Before you put a man into space you have to work out a way to get him back alive. That is the job of Captain Hollenbeck (Guy Madison) who works for the USAF. Firstly, he is working on a way to get men to eject from the latest ever-faster jet fighters and survive. This isn't the easiest thing in the world but Hollenbeck manages to find a way amid quite a few injuries.
However, there is more to come. A rocket sled to push humans above 1000mph and then the most dangerous of all, a balloon that takes a man to the very edge of space. To the horror of his new wife Pat (Virginia Leith), Hollenbeck volunteers for this mission himself...
Based on the real events, then contemporary to this film which at times is in a semi-documentary style. Unfortunately it can be a bit dry and too restrained at times but the actual experiments give you all the drama and action you could hope for. A fascinating look at the very early, and maybe largely forgotten, part of the space race.