New Who 4.4, The Sontaran Stratagem

Watched this yesterday, natch, when I got back in from Harrogate. Like a lot of people, I was nervous about it, given Helen Raynor's two episodes last year. But insofar as it's possible to judge from one half of a two-parter, this seems to have continued successfully in the same solid-good-stuff vein as the previous three episodes of the series.

( Donna / Martha )

( The episode overall )

( Wider plot arcs )