Space: 1999 - Full Series Information, Trailer & IMDb Reviews
Watch Space: 1999 Season 2 Episode 19 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.
Space: 1999: Koenig desperately tries to convince the others that they're only seeing illusions and that the aliens are actually after energy that they can only get by destroying Alpha.