The Doctor's nasal nemeses are back. A researcher working on the remains of the Dalek scout fried in 2019's 'Resolution' inadvertently resurrects the scout's malignant bio-material, which promptly begins self-cloning and reprograms a 3D-printing factory to produce the familiar weapon-laden conical exoskeletons. The episode is a refreshing reversion to straight-forward adventure with little of the self-righteous sermonising that permeated many of the last few seasons' stories (although Chris North is back as amoral corporate sleaze-ball Jack Robertson). The story moves along at a brisk pace and the climax, although a bit 'convenient', is satisfying, but clearly there wasn't enough plot to fill 70 minutes, so the episode trails off with an maudlin and overlong farewell to Graham (Bradley Walsh) and Ryan (Tosin Cole) (as I never liked the Doctor's 'fam', any attempt at an affecting epilogue would be lost on me). Jodie Whittaker is somewhat more restrained in her 'eccentric goofiness' shtick and her scenes with semi-regular Captain Jack Harkness (John Barrowman) are pretty good. The special effects are serviceable and the latest iteration of the iconic Whovian enemy nicely designed. Hopefully this episode will set the tone for the upcoming 13th series (since the 2005 reboot, 39th since the show began in 1963)).