"The New Breed" is an episode from the first season of The Outer Limits
revival series. It was originally telecast on June 23, 1995. It stars Richard Thomas.
It is a cautionary tale about an experiment that goes too far. From the Wikipedia article: Dr. Stephen Ledbetter makes a technological and medical breakthrough when he creates a type of tiny machine, known as nanobots, capable of curing any disease or imperfections in the human body.Watch on HuluWikipedia (contains SPOILERS)IMDb (contains SPOILERS)
The running time of the episode itself is 44:28 but there are commercials which add to that time.