Gauntlet

Fifty one contestants, each over forty years of age and having earned the distinction of representing their state of birth, vie for the ultimate prize in a futuristic foot race that will stretch the limits of sanity and endurance. 

Tasked to compete within a billion-dollar, state of the art dome located at the center of a vast, desolate desert range, the racers soon discover the challenge of merely keeping up with the pack a distant second to survival in what will become a grueling nightmare of hellish, techno-manufactured weather conditions and winner-take-all ruthlessness.