World Enough and Time (2017-06-24)
In a snowspace, the Doctor stumbles from the TARDIS and regenerates. Earlier, the Doctor proposed to test Missy by having her answer a distress call. They arrive via TARDIS on a colony ship reversing away from a black hole. They are held at gunpoint by Jorj, who demands to know which of them is human, and Jorj shoots Bill. The Doctor, Missy, and Nardole learn that a few days ago, some of the crew had gone down to the ship’s bowels but never returned. Jorj claims the ship was other empty, but the Doctor shows there’s thousands of humans, the first crew descendants: due to time dilation, time moves much faster at the ship’s bowels. Bill awakens in a hospital, having been fitted with a replacement heart. Razor, a hospital employee, explains that some of the patients are awaiting to be “upgraded” to escape the ship’s polluted air.
This started slowly and felt rather dis-jointed. It isn’t until the final act when we find out what really happened to Bill that things come together and a cliff-hanger is provided for the next episode.