Doctor Who Series 10 is shaping up to be a true mystery series — rather than the only challenge being to outsmart an obvious villain, a lot of work is being done by Bill and the Doctor to figure out what they’re even fighting and/or running away from. In these two episodes from early May, that set of challenges comes in the shape of a haunted house and murderous capitalist spacesuits, respectively.

In this episode, the Doctor breaks his vow: he goes off-world, taking Bill into the future — into a brave new world in which everyone must be happy. Or else.

So here we are, back for some proper Sci-Fi after a long, long time of living the slow path. I was skeptical after Series 9, but: I really liked it? I think it’s gonna be a good final series for Peter Capaldi? And Bill — oh, Bill. She’s the best.

Oh, I have missed this. So, so much. I found some of Moffat’s Christmas Specials a little bumpy, but I really had fun watching this. The story was well-paced enough, the nefarious plan was engaging rather than entirely foreseeable, and the script combined fun and suspense as well as a few wistful moments following on the heels of the previous episode, The Husbands of River Song.