I've not been especially enjoying this season. It's all felt very middle of the road - no real highs, no real lows (although 'Knock Knock' certainly came closest), nothing I can really point to and say, "there, that's what's wrong". It's just all been... eh.
I always like pulling out the thematic elements and the hints and suggestions that have been part and parcel of the arc building for this show since 2005. I'm not talking about blatant in your face stuff like "OMG he said Saxon!" or "oooooooooh what's the crack?" or who's in the damn vault. I'm talking about the subtler, lower level stuff that can slip by you without noticing, but once you do, it all clicks into place and adds a whole other level of enjoyment. And there didn't seem to be any in this season. It disappointed me.
But I've been reading and listening to other people's reviews, and hearing them find stuff I didn't find, and it's starting to come together for me more now.
For the purposes of this season, it's been all about fighting against empire. The Doctor has always been all about the little guy, toppling regimes left right and centre. But that has been brought into focus more this season. Subverting dominion. Standing up to The Man.
First of all we have the most diverse and anti-establishment Tardis team we've ever had. An over-50 year old man as a central action hero. A black woman playing a gay character. A gay actor playing a robot. Even though the Doctor seems to be part of the Institution by working at the university, he never does what he is supposed to and mixes up poetry and quantum mechanics lectures however he likes. Bill is black, gay, has an unconventional family structure, and goes to lectures she isn't even supposed to. All of this is part of the theme.
In "Smile", the Doctor declares the Vardi as the native species of the colony planet, and that the humans are colonial invaders. In "Thin Ice", they overthrow the landed gentry and place street urchins in their place, meanwhile ending the 'slavery' of the Big Fish. In "Oxygen", they are literally fighting 'the suits', and the Doctor says that this one incident eventually results in the overthrow of oppressive capitalism as a social concept.
Then we get to the big three-parter, which frankly I think failed rather as an experiment. But it contains the same timely themes - a dominating force who nobody really wanted in charge, and who keep control by convincing the populace that a lie is the truth. Bill overthrows that regime not by telling the truth, but by telling a bigger lie. Some simultaneously subtle and brutal political commentary there, I think. "Empress of Mars" features the conquering arrogance of the British army, thinking they can rule the world by divine right. "The Eaters of Light" features the Roman army conquering the Scots by the same justification.
A secondary theme is 'origin stories' - to go with the 'new start' concept for this season, I suspect. We have the origin story of the Vardi as an independent civilisation. The origin story of the Loch Ness Monster. Background details suggest that the space station in "Oxygen" is a preliminary version of the Gus system from "Mummy on the Orient Express". "Empress of Mars" is an origin story for the Ice Warriors.
And of course, at the end, an origin story for the Cybermen - which takes place on another colony ship, featuring people on their way to take over another world. And all of Bill's uniqueness, her anti-establishment-ness, has been horrifyingly subsumed into utter conformity and facelessness by a newborn empire.
There is also a recurring motif of time dilation, but that doesn't seem to be quite as extensive.
So I'm hoping that this will all come together in the final episode - although I'm starting to suspect it may overflow into the Christmas special, which is both Capaldi and Moffat's swansong so I don't imagine it's going to be a fluffy throwaway.
And I'm also seeing themes that appear throughout the entire Capaldi era, not just this season. Matt Smith's era was all one big piece, where "The Time of the Doctor" looped back around to "The Eleventh Hour" and made it all one big circular story. The theme of the Doctor's approaching death appears throughout Smith's era, symbolised by the Crack which keeps chasing him around and is his greatest fear in "The God Complex". Likewise, I believe that in Capaldi's final stories, Moffat is looping back around to revisit the themes which he began the Capaldi era.
What was the Twelfth Doctor's first big question? It was "Am I a good man?" That question, still ongoing, has been paralleled with Missy. In season 8, her entire plan was to get the Doctor to be her friend again by bringing him down to her level - by giving him a companion who would push him further, by tempting him with an army with which to right the universe's wrongs, by pointing out how similar they are, even down to the accent.
In season 9 she did the same - emphasising 'the good within the evil, the evil within the good' in an attempt to erase the lines between the two. Even Davros asked him, "Did I do good, Doctor?"
And now, in season 10, we get the same question, but flipped. Now the Master is wondering, can she be a good 'man'? The Doctor is trying to get her to be his friend again, but by bringing her up to his level instead of sinking to hers. Missy and the Doctor have been paralleled all three seasons.
The producer's reuse of the "Day of the Doctor" image to promote this final two-parter is no coincidence or simple cost-saving exercise. It is part of the point. In "Day of the Doctor", the current Doctor faced his own dark past, the version of him who did terrible things, and grew to accept him. Now, the Master, on the verge of becoming good, is faced with her own dark past, a version of him who did terrible things. Will the Master sink again to the evil acts he once did (such as destroying Gallifrey), or will she try to bring the old him up to her level?
And I think that will also circle back around, hammer the point home thematically in Capaldi's final episode, by explaining his brief appearance in "Day of the Doctor" and tying it all back in together. At least I hope so.
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