In which our heroes discover the horrors of space capitalism. The show's always tended to use evil capitalists as heels, even going as far back as "Planet of Giants" in the Hartnell Era. This attempts felt a little heavy-handed.
It's also an interesting take on doing a "zombie" story in space, very atmospheric and creepy. Bill's reaction to being called a racist was interesting, as well. I also like the way in which Nardole is being developed as both a serious and a comedic character. "Some of my best friends are Bluish."
Overall: An OK episode, but not a great one.