Space: 1999 - Space Brain

Seizoen: 1 - Aflevering: 21 / 21 - Eerst uitgezonden: 29 januari 1976 - Episode ID: 254739

The Alphans encounter an intangible mass as the moon heads though space and it could spell disaster for them. The energy field seems to have a strange and frightening power that Koenig and the others try to figure out before it's too late.