The Alphans hopes of resettling on a planet of their own seem to be within reach when a seemingly uninhabited and life sustaining planet is located. But when they learn that the planet is already inhabited by a powerful immortal being, it quickly becomes a fight for survival where only the victor may escape alive.
Elenco: Martin Landau , Barbara Bain , Catherine Schell , Barry Morse , Tony Anholt , Nick Tate , Prentis Hancock , Zienia Merton , Clifton Jones , Anton Phillips .