Officially, the plot is simple -- a Dalek malfunctions and develops a moral code, and the obvious solution is to re-enact the 1987 cult hit "Innerspace." “The most dangerous place in the universe," we're told, although I think the people on the outside of the Dalek would disagree. Cue lots of eerie lighting, croaks of "Exterminate!" and a chance for the Doctor to scoff at soldiers.
Really this is a chance for Peter Capaldi, somewhat wasted in his first proper appearance, to shine. Ever since the show came back in 2005, it's flirted with a darker Doctor -- Eccleston's excellent performance in "Dalek," Tennant's personal apotheosis in "The Waters of Mars," "The man who can turn an army around at the mention of his name" in "A Good Man Goes to War." Now it seems that they're actually delivering.
READ MORE: Review: 'Doctor Who' Season 8 Episode 1, 'Deep Breath,' Doesn't Let Peter Capaldi Exhale
We're treated to the...