A town called Mercy (series 33, episode 3)
Strange little episode this one: it was more of a morality play than a scifi conundrum. An intergalactic war criminal holes up in a town in the Wild West and is hunted by a cyborg gunslinger. The cyborg, a war machine created by the war criminal, is seeking revenge upon its maker. Yet the episode isn’t as morally black and white as that summary suggests: the war criminal had to create such a (Frankenstein’s) monster in order to end the war quickly and save millions from dying. It’s not black and white: it’s grey (no, not 50 Shades of it!). Even the Doctor stuggles with the moral quandry, and is definitely out of sorts/off his game/not himself. Pond has to pull him up and remind him about what the Doctor’s meant to be all about. It’s a bit curious, to say the least. And I think that sums up the episode: grey, curious and out of sorts. Even the ending is a fudge really, cos the war criminal goes and commits suicide, obfuscating any need for a proper trial and real denouement. Am I being a tad unfair? Is the episode just like real life? Hmm. If I want real life, I’ll watch something like Panorama, not Doctor Who. Still, it’s an episode to mull, and it stays in the memory.