Ladies and gentlemen … I think we may have just reached the pinnacle of Modern Doctor Who.
The strength of many Doctor Who 2-parters lies in the second part. We’ve seen innumerable occurences over the past ten years where a fantastic Part One is followed up by a confusing, wonky, or weak Part Two. But this is not the case here. This story, from the start of last week to the end of this week, has built and developed in a believable way, going from strength to strength, ratcheting up the tension and keeping the viewer engaged throughout.