The BBC's announcement of Jodie Whittaker as the first female Doctor has sections of fandom up in arms. Why all the fuss?
A busy episode in which at least one character dies, two become puppets, and three are trapped and left for dead in an unlikely place.
In this episode the plotting is tight and well-judged, the interplay between characters snappy and natural-sounding, and we glimpse the Doctor's savage side.
The show comes back from a seasonal hiatus with a predictable monster-of-the-week episode, but at least it contains some hints for the future.