Following an explosion in a secret laboratory in which elderly janitor Harlan Williams (Keith Szarabajka) has been exposed to the chemicals released, he begins aging--but he is getting younger instead of older. This attracts the attention of those running the lab who are eager to find out what caused this. Williams fears for his life and goes on the run to avoid their attempts to experiment on him further. Frances Sternhagen plays his wife, Gina Williams, and other cast members include Ed Lauter as Gen. Louis Crewes and R.D. Call as Jude Andrews. Stephen had a cameo as a bus driver.