Dragon’s Domain. Season 1, Episode 8. First broadcast Thursday 23 October 1975.

This month’s eldritch alien threat is, for once, not intent on killing everyone on the base; instead it takes the more focused approach of killing everyone on a deep space probe and then hunting down and destroying Moonbase Alpha’s resident Italian big game hunter. Oh, and traumatising an entire generation of nerdy moppets in the 1970s.