Koenig leads a team to investigate a ship which resembles one launched from Earth years earlier that has landed on the moon. The ship is found deserted save for a mobile computer named Brian, who soon leads the Alphans into a dangerous situation.
Elenco:
Martin Landau
,
Barbara Bain
,
Catherine Schell
,
Barry Morse
,
Tony Anholt
,
Nick Tate
,
Prentis Hancock
,
Zienia Merton
,
Clifton Jones
,
Anton Phillips
.