Trapped on a Barren Prison Planet, Their Greatest Challenge is to Survive! 4.20/10 1994-11-28 89 minutes.HDPrisoners are dumped on a sand planet dubbed Earth 21-523 where most are immediately killed by the sand people and the remainder struggle for existence. That is until a new prisoner arrives with ideas of providing irrigation of the desert. But he still must first fight the nomadic sand people.Year: 1994Studio: MCA Television Entertainment, Davis EntertainmentCountry: United States of America