Space: 1999 - Full Series Information, Trailer & IMDb Reviews
Watch Space: 1999 Season 1 Episode 18 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.
Space: 1999: The moon itself somehow becomes the prisoner of an alien planet as Alpha is gripped in a ring of light. At the same time, Dr. Russell becomes an involuntary informer with death as her only alternative.