Ep 5. Death's Other Dominion

In Space 1999 season 1 episode 5, entitled "Death's Other Dominion," Commander John Koenig and his team investigate an unknown planet after receiving a distress signal. They find a group of humans who have been living on the planet for centuries, living under the leadership of a man named Anton Zoref. Zoref explains to Koenig and his team that they had landed on the planet nearly 900 years ago and have been unable to leave due to the planet's harsh climate and the fact that they had developed an illness that prevented them from surviving in space.

Zoref and his people seem to be thriving, but there is something strange about the planet. Koenig begins to sense that the planet is not what it seems, and his suspicions are confirmed when he and his team discover that the inhabitants of the planet are all clones. These clones have been created so that the original inhabitants of the planet can continue to live on without aging or dying.

Koenig and his team also learn that the clones have developed a sinister plan, to take over the bodies of the new arrivals, their bodies aging and deteriorating over time. Koenig and his team must fight off the clones and find a way to escape the planet before they too become victims of the clones' plan.

The tension in this episode is expertly crafted, as the characters are faced with a seemingly perfect society that is hiding a dark secret. The direction emphasizes the sinister nature of the planet, as the camera lingers on the cold, sterile laboratory where the clones are created. The episode raises questions about the nature of immortality and what lengths people will go to achieve it.

Overall, "Death's Other Dominion" is a thrilling episode that explores the darker side of human nature. The tension builds throughout the episode, leaving the viewer on edge as Koenig and his team try to navigate the dangerous situation they find themselves in. This episode is a standout in the series and a must-watch for fans of science fiction.