In the 21st century, Earth begins the colonization of Mars. However, things do not go as planned, at first due to the hostile Martian natives and later because of the self-destructive Earthmen.
Cast:Rock Hudson , Gayle Hunnicutt , Bernie Casey , Christopher Connelly , Nicholas Hammond , Darren McGavin , Roddy McDowall , Bernadette Peters , Joyce Van Patten , Maria Schell , Fritz Weaver , Linda Lou Allen , Michael Anderson Jr. , Robert Beatty , James Faulkner , Jon Finch , Terence Longdon , Barry Morse