"In the early episodes, we felt we had pulled our reins in too far. We discovered that many people were expecting an alien every week, because of the mini-series, and were being disappointed," said Ashley in an interview with Starlog during filming of the eighth episode.
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He learns that the crimes are being committed by a monstrous alien insectoid prisoner known as a xenomorph, possessing shape-shifting and physical possession abilities, who has escaped from an alien prison starship passing by the solar system, and he teams up with a beautiful medical officer from that ship, Ta'Ra (Maryam d'Abo), to track the villain down.