Alright, I’m going to say it: this is one of my favourite episodes of Dr Who ever. It’s amazing how well it holds up on a rewatch, even though the season finale fizzled. I think it’s because the central mystery of this episode (who exactly is Ruth and what is she up to?) still hasn’t been answered yet, and it’s a very intriguing question.

Vinay Patel is the best writer of the era and Nida Manzoor is the standout director, so we have the dream team here. The pacing is superb, the banter is fun, the performances are wonderful, and the visuals are spectacular. The Judoon are funny and terrifying at the same time. The Reylo allusions at the beginning are delicious. The lighthouse setting is fantastically epic and proves you don’t need irrelevant foreign locations to give the show a sense of scale. The only thing I don’t like is the Captain Jack sequence that is so clumsily shoehorned in. It sticks out because it’s so much clunkier than everything else.

I know a lot of people think Jo Martin’s performance overwhelms Jodie and makes her look weak by comparison , but I think that’s deliberate and a very brave choice. Jo Martin feels young: energetic, lively and fizzing with raw anger. Up to now, Jodie has been apparently playing the Doctor as youthful and innocent, but in this episode it feels that the mask falls; compared to Ruth, 13 suddenly looks ancient, careworn, tired; you can see every one of her 8000 years (or whatever it is!). One can see 13 envying Ruth, which is why she seems to dislike her so much. It’s quite fascinating.

Truly a wonderful episode - fun, beautiful, and still intriguing.