Space: 1999 (1975–1977)
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The Alphans find themselves caught up in a long-running war between two rival planets, Betha and Delta. When a Bethan gunship, which has landed on the moon as a tactical advantage, appears ... See full summary »


Bob Kellett


Bob Kellett (screenplay), Gerry Anderson (series creator) | 1 more credit »




Episode complete credited cast:
Martin Landau ... Commander John Koenig
Barbara Bain ... Dr. Helena Russell
Barry Morse ... Prof. Victor Bergman
Caroline Mortimer Caroline Mortimer ... Dione
Prentis Hancock ... Paul Morrow
Clifton Jones ... David Kano
Zienia Merton ... Sandra Benes
Nick Tate ... Alan Carter
Maxine Audley ... Theia
Kevin Stoney ... Talos
Carolyn Courage ... First Girl


The Alphans find themselves caught up in a long-running war between two rival planets, Betha and Delta. When a Bethan gunship, which has landed on the moon as a tactical advantage, appears to have been hit its commander Dione seeks sanctuary with the Alphans. Koenig attempts to negotiate a truce but Dione has other ideas... Written by don @ minifie-1

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Release Date:

19 February 1976 (UK) See more »

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

1.33 : 1
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Did You Know?


Filmed November 8th to the 19th 1974, but the episode ran short. New footage was added later (from February 25th to the 27th 1975, immediately after "The Testament of Arkadia" was finished shooting), including the scene with Dione in Sandra's quarters, as well as all scenes aboard Dione's spaceship at the episode's start. In addition, the originally-filmed ending was replaced, as the producers weren't satisfied with having Koenig simply giving Talos the coordinates of the Bethan gunship, sparing Alpha. A new ending was shot consisting of Koenig's sneaky ploy of taking matters into his own hands. See more »


The moon has no atmosphere so when the Bethan gunship fires it's missiles over the moon-base towards the Deltans, there should be no noise, just flashes of light and maybe some vibration via the moon surface (but nowhere near as intense as is shown here). See more »


[first lines]
Cmdr. John Koenig: Two planets.
David Kano: We'll be in range to survey the left-hand planet in 24 hours.
Sandra Benes: Still too distant for visual analysis, but the spectrographic analysis looks promising.
Dr. Helena Russell: Two planets. Be nice to have a choice, wouldn't it?
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User Reviews

27 August 2014 | by trashgangSee all my reviews

The Last Enemy is for me personally a great episode. It's full of suspense, it do has great effects for the time being and it never has any boring moments, a thing we do have in a few episodes. But here, it's one big adventure.

Two planets are turning around a sun and are closing in on our well known moonbase. So far no problem and Alpha is happy that two new planets are out there to be discovered and maybe they can go live up there but soon moonbase is under attack. That's what the moonbase do think but in fact it's a war between the two planets.

When one aircraft lands on moonbase Alpha suddenly they are involved in the war between the two planets. One of their leaders enters the moonbase and is rather kind, agreeing for a cease-fire but is it what it looks like?

One of the greater episodes into season 1.

Gore 0/5 Nudity 0/5 Effects 3/5 Story 4/5 Comedy 0/5

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