Space: 1999

Season 1, Episode 18

Episode Title: The Infernal Machine

Air Date: 1976-01-08

Overview:

The Alphans are visited by a bizarre spacecraft, whose request for supplies hides a deeper purpose. The ship, Gwent, is found to be sentient, the attempt of a vain alien genius to live forever. Powerful, unstable and craving companionship, Gwent intends for Koenig, Helena and Bergman to replace its aged, dying creator.