This is part of a series of reviews of Doctor Who in chronological timeline order.

Previous Story: Conversion

I have very mixed feelings on these short 30-minute stories. Usually, unless they're short stories that form a larger narrative, they suffer from lacking the time to flesh out the characters and the overall setting. This story suffers from that quite a bit. There's no real narrative here, it's just essentially showing off a sci-fi concept with no larger plot.

I will say though, it's a very good sci-fi concept with a genuinely excellent atmosphere performed well by the cast. This might be the right story for someone else but for me it's just too short to get anything meaningful out of.

Next Story: The Bridge Master