This review contains plot spoilers and is based on the UK edition of the ebook.

Tied into The Angels Take Manhattan, this ebook constitutes a prequel of sorts. It's most notable for adopting a cod noir style and presenting events from Melody Malone’s first person POV. The gambit allows author Justin Richards to enjoy himself, and his playful pastiche does a fine job of conveying River Song’s unusual world-view.

The decision to link a novella, or long-ish short story, to TATM fits tidily with that episode’s emphasis on clattering typewriters and storytelling practices, as well as imitating the Melody Malone book that we’re shown on screen. It therefore has a sort of instant authenticity. Yet one might have expected the novel the Doctor reads from to itself become a tie-in, with glimpsed on-screen chapter titles being fleshed out, precisely inter-linking ebook release and televised tale. Instead, The Angel’s Kiss eschews such direct expansion of the story world, and sets its sights on bit-part players such as Julius Grayle and Sam Garner the private eye. More substantial than recent online prequels, but nevertheless far briefer and less narratively developed than an episode, this ebook compresses its storyline into a fairly limited number of settings and incidents.

Perhaps the greatest difficulty with this e-extra is how it uses the Weeping Angels. Of course, Moffat’s own TV scripts have form here, with the Angels’ modus operandi shifting radically from appearance to appearance – sometimes they kill victims, other times they bounce people back in time. Here they don’t really do either of those things, but instead drain life/time energy in a novel manner. In a sense, then, the Weeping Angels can pretty much be used to play whatever temporal tricks their author desires; as long as “timey wimey” shenanigans are involved at some level, and mixed with narrative threat, then the Angels basically remain on-brand. What best characterises them as a monster is that they’ve never been set in stone; each new appearance adds to their powers and purposes. And this is certainly true of The Angel’s Kiss. Angels can be rewritten, especially when they're read. But I still felt that Richards’ storyline reduced its angelic evil to an overly convenient, plastic and malleable plot device at times. Certain other Who villains would have fitted more obviously into events, rather than the Weeping Angels being reworked to carry things.

Ebooks such as this may well offer one future for Doctor Who publishing. Presumably overheads are lower than print editions, something which may enable ebooks to be targeted at a smaller fanbase or readership compared to the relative mass market required for many current Who titles. (I’ve always lamented the fact that there was no further script book published after Series One, something which I’ve heard said was a result of that title’s poor sales; perhaps ebook releases would allow original scripts to once again see the light of day). But ebooks would presumably frustrate the eleventh Doctor himself; it’s difficult to tear out the final page, for example: endings remain obstinately in place. Perhaps ebooks like The Angel’s Kiss might also frustrate sections of fandom; you can’t put this one on the shelf, nor admire its cover art in physical form. At the risk of coming over all old school – as if I’ve been thrown out of time by mysterious forces – The Angel’s Kiss would still have been more compelling for me as a material thing.

Regardless of its format, though, this delivers a pleasurable and well-crafted addition to River Song’s story. The classic noir detective typically has to contend with a mysterious femme fatale, but Melody Malone wraps both roles into one elegant package, her career at the Angel Detective Agency never distracting from her desire to make an impression on the opposite sex. But whereas Alex Kingston’s TV performance leaves some room for ambiguity as to just how knowing River’s sexuality and manipulation of male characters might be, the problem with first person narration is that it converts the character’s allure and mystery into descriptions of pointing the right bits at the right chap in order to get his attention. Unspoken game-playing becomes conscious, in-your-face strategy, curiously making River more one-dimensional rather than more complicated. You’d imagine that getting inside a character’s head would achieve the opposite effect.

By extending The Angels Take Manhattan, as well as giving Melody Malone all the best lines and pushing at least one Weeping Angel in a somewhat unexpected direction, The Angel’s Kiss glosses various character and creature arcs. Knowingly arch in its noir stylings, this arc angel of an ebook is never less than a hell of a lot of fun. In short, no reader will be left stony-faced by its incessant wise-cracking and wordplay.

This review is based on a preview of the UK Region 2 DVD release.

There has been a lot of fan debate over whether the five episodes broadcast this year form their own series or not; however, BBC Worldwide have placed them firmly within the broader thirteen episode run (plus Christmas special) by releasing them on DVD and Blu-ray as Series 7 Part 1! Since the series has only recently been broadcast and all our episode reviews are available to read I'll only concentrate on what is included in the boxed set.

Being this is the 'bare-bones' release there are no commentaries, just the five episodes which appear to be complete ("Next Time" trailers are intact at any rate!), and it's always nice to be able to watch end credits without continuity announcers' verbal diarrhea or squeezing (though the BBC weren't so 'intensive' this year). Disc one has the first three, and disc two has the final two, plus the special features - which as one might expect from this release, there aren't that many!

The five separate mini-episodes of Pond Life are included - which unlike the 'complete' version broadcast on the red-button remain individual even when you "Play All".

Also included are the two 'prequels' that were originally exclusive to iTunes, which provide introductions to Asylum of the Daleks and A Town Called Mercy. The former provides the reason for why the Doctor has travelled to Skaro, whilst the latter covers The Making of the Gunslinger (which unfortunately is a bit of a spoiler for the episode if you had watched it beforehand!).

As well as the 'standard' release, there is also a limited edition "Weeping Angel" release which has an alternative cover and contains a poster. This version also presents an additional special feature in the form of the BBC America documentary The Science of Doctor Who, shown by the channel back in August as part of a series of special shows leading up to the series premiere in September. The documentary takes a light-hearted look at some of the scientific ideas thrown up by the series (time-travel, sonic screwdriver, regeneration, etc.) with comments by members of the scientific community like Maggie Pocock and Michio Kaku, presenters like Dallas Campbell from Bang Goes The Theory, the obligatory contributions from Steven Moffat, and other fan personalities.

This review contains plot spoilers and is based on the UK preview of the episode.

The Angels Take Manhattan delivers in a series of ways: New York’s most infamous statue makes an impressive appearance, and location filming in NYC allows for some iconic Central Park sequences, especially Rory’s visit to Bethesda Fountain. It’s often noir-ish in tone, largely as a result of Melody Malone’s pulp pastiche mixed with repeated shots of dark, shadowy hotel corridors. Nick “slow-mo” Hurran does the business again, and there are some interesting ideas that help develop the Weeping Angels, chiefly their use of a “battery farm.” Surely this could’ve been implemented in any city or major population centre, though; in the end, there’s no strong or necessary link between Manhattan and what the Angels are up to. And do the Angels’ victims spend their entire lives in one hotel room? The plotting here produces some striking, uncanny images of people confronting their older selves, but it doesn’t quite seem fully thought through.

As a series finale, this sometimes suffers from an excess of narrative trickery. It constantly plays with audience expectations surrounding the Ponds’ exit, twisting backwards and forwards between a “final farewell”, death, not-death, death, and, well, a final farewell exactly as promised. For me, the frenetic to-ing and fro-ing got in the way of any sustained emotion; for loss to really hit home, I suspect that its mood has to linger with audiences. But all the whizz-bang scripting rather got in the way of building a powerful, consistent emotion. Rather than heart-felt sentiment and sincerity, this felt too much like a storytelling game, even down to a clever final integration with The Eleventh Hour. Or perhaps it's just that I’ve got a heart of stone.

Steven Moffat also repeats his favourite ontological game; the one where a character suddenly appears in what should be an impossible time and space. We’ve previously had the Doctor abruptly appearing on the TARDIS screen (The Beast Below), and strolling into a recording of the past (A Christmas Carol). This time it’s Rory who moves inside the pages of a novel being read aloud. As a device, it’s perhaps beginning to lose its impact through brazen repetition. Yes, Steven Moffat is an award-winning and massively talented writer, but can’t anyone – exec producer, producer, script editor, whoever – push him not to rely so heavily on tried-and-tested motifs? Just for once, it’d be interesting to see him produce a screenplay devoid of self-referencing Moffatisms.

The Angels Take Manhattan plays yet another game; it needs to find a way to make its ending properly final; a conclusion that can’t be rewritten or reversed. But it does this by reverting to Moffat’s fixation with spoilers: if the Doctor and Amy read ahead, and into their own future, then that future supposedly becomes fixed or “written in stone”. However, this gambit assumes that the events of River’s novel are nothing but the stone-cold truth. What if she’s fabricated, embellished, or dramatised events? I suspect that reading Melody Malone’s adventure shouldn’t quite work in the way that’s suggested. Time can be rewritten, although “not once you’ve read it”… but this can only be true if the act of writing is in no way aesthetically transformative, and amounts to a sort of pure, factual documentation. Storytelling – represented through typewriter clatter and words in extreme close-up – is reduced to a record of events; reading therefore means nothing other than discovering what is, was, and will be. And this attitude towards storytelling extends to the very last story that the Doctor is asked to tell: that of Amy's adventures which have finished, and which are simultaneously yet to come. Oddly, there's absolutely no concept of fiction (or art) within Moffat's artful fiction.

Setting this strangeness aside, “I just have to blink” is a smart inversion of the Angel’s first appearance, and the Angels continue to offer an effective, monstrous presence as Moffat returns them to their Blink modus operandi rather than building on the developments of series five. There’s also a bit of resetting for River, whose role as a criminal, and as the woman who killed the Doctor, seems to have been dissolved along with the Doctor’s legend. The irony is that just at the point that this story insists on fixed points and irrevocable endings, it nevertheless busily rewrites and re-orients Doctor Who’s continuity.

And therein lies the problem, because there can’t be any final ending in a programme like Doctor Who; it’s right and fitting that the Doctor should hate endings, never reading a book’s final page, because Who itself will never have the TV equivalent of a closing sentence. And this is why Moffat has to work so hard to trick viewers into believing in a final ending for the Ponds, even down to a collision of “written in stone” dialogue and written in stone visuals. And down to re-using a shot from The Eleventh Hour, to further cement the notion that Amelia's story is now wholly completed, and rigorously book-ended. But this sense of a closed ending pulls, ultimately, against the televisual and storytelling DNA of Doctor Who, where endings – whatever temporal rules you try and set for them – are always temporary. Afterwords are never the end; they’re just the bit before readers start imagining, and writing their own stories. (Or they’re the bit before the next Christmas Special).

Perhaps the most satisfying thing about The Angels Take Manhattan is that it’s a story about telling and reading stories. The angels get meta. But this remains a satisfaction at writerly cleverness in place of heartbreak and emotional devastation. Don’t get me wrong, I’ll miss Amy and Rory, and this episode does a good job of showing their love for one another. But in the end, there’s not too much to feel actively sad about; they presumably live out their time together, remembering the Doctor and all their escapades, even reaching perfectly respectable ages. Their tragic fate… is to lead ordinary, loving lives. And it’s hard to feel sorry for the Doctor; he has River to look after him, after all, and we already know that he’ll have a new best friend soon enough, as the pleasures of seriality roll ever onward. The Angels Take Manhattan is, at best, a simulation of high emotion – a copy which shouldn’t be mistaken for the real thing. Statuesque and finely crafted, it may be, but it represents an impossible finality in a serialised world.

This review contains plot spoilers and is based on the UK preview of the episode.

“That’s new!” And as a slogan for series seven, surely those words are appropriate enough. Despite revisiting familiar monsters and set-ups (Daleks, dinosaurs and the Western), Doctor Who continues to ring the changes here. Asylum of the Daleks introduced a companion like no other, and The Power of Three puts an intriguing new spin on the old alien invasion plot, as well as utilising a time-frame and a structure that are highly unusual. Superficially, this reads like Russell Textbook Davies -– it's all celebrity cameos, newscasters, and shots of international landmarks. All families, and homilies, and voiceovers, and underground bases, and tributes to the great human spirit. It’s a Greatest Hits package on an epic scale. Except it’s also infused with Moffatesque tropes: things like the throwaway Zygon incident (including cabbage cameo) and the Henry VIII adventure-as-punchline, not to mention the Doctor’s difficulty with life in the slow (i.e. ordinary) lane, the Doctor-Amelia relationship, and more gags than most sitcoms would settle for.

What’s curious about this Davies-Moffat hybrid, of course, is that despite offering the best of both worlds – a meeting of minds and eras – it’s written by neither showrunner. Instead, it’s Doctor Who’s own third way; the power of three produced by fusing two different dimensions and eras of the show. Chris Chibnall plays an absolute blinder, proving that he can rise to the challenge of almost any commission. But while Dinosaurs on a Spaceship was a title in search of an episode, this is an episode in search of a title. Cubed would have been a contender for the dullest story title ever committed to screen; thank God for the late rethink. But The Power of Three isn’t much better. It doesn’t really have anything much to do with the story: after all, this is about physical cubes, not a mathematical process of cubing (adding a line about block transfer computation might have covered it, but c’est la vie. It’s hardly as if the episode is light on fan service). Instead, The Power of Three is a title that barely makes sense unless you interpret it in the light of this episode’s place in the overall series – it’s The One Before The Ponds Leave, and so is meant to reinforce the team’s togetherness just before tragedy (presumably) strikes. It’s ironic that in a run of single-episode stories allegedly light on arc matter, we get an episode title that’s pretty much pure arc. Year of the Slow Invasion would have been my personal choice, but I expect any executive producer worth their salary would have had a heart attack in response to a title involving the word “Slow”. Saturday night prime-time telly can't afford to imply any sort of sluggishness.

I could grumble that Steven Berkoff is ludicrously wasted as the Shakri propagandist, and that the global attack is resolved quicker than champions can solve a Rubik’s cube. And how many different mythical evils are Gallifreyan children told about? This felt like lazy Who – a clichéd short-cut to narrative significance that hadn’t been earned. But such complaints miss the point, I suspect: this episode isn’t really about the Shakri. It isn’t even really about the cubes... and here’s hoping that they aren’t released as Character Options merchandise. A featureless black cube that does absolutely nothing: Worst. Toy. Ever. No, it’s character stuff all the way down from seven to zero, with Brian getting some great lines and some hilarious bits of business. In fact, this whole episode is hugely quotable, whether it’s chat about Yorkshire Puddings, or watering the plants, or “welcome back, lefty!”. The dialogue consistently sings out; it dances and zings without ever feeling overly wacky or forced.

Chris Chibnall gave Brian pretty much the strongest moment in Dinosaurs – sitting on the TARDIS threshold drinking tea and watching the world turn – and he’s at it again here. This time Brian’s everyman figure gives his blessing to Amy and Rory’s time-travelling exploits in a heart-warming sequence: “save every world you can find”. Brian’s Log is also comedy gold, as is his moment of recognition that Amy and Rory have changed outfits. It’s a great shame that presumably we’ll lose Brian along with the Ponds – Doctor Who feels stronger and more rounded when its main characters reach across generations, and like Wilf before him, Brian adds a light touch of complexity, and a sense of real groundedness.

Kate you-know-who Stewart is another well realized character, and Jemma Redgrave turns in a stellar performance even though she doesn’t always have a huge amount to work with. I’m not sure how convincing a reformed and scientifically-led UNIT actually is, mind you, but nevertheless Redgrave’s chaste kiss at the episode’s end is a delight. The Brigadier is honoured via Kate’s inclusion. If the mark of an impressive script is that it leaves its audience wanting more, then this definitely hit the mark for me: I was left wanting more of knockabout, resolute Brian and more of earnest, intelligent Kate.

In the past, Chris Chibnall may not always have won fans’ admiration. The fact that series one of Torchwood had to be filmed when it basically wasn’t 100% ready didn’t help his cause, and The Hungry Earth/Cold Blood also have their detractors, though Chibnall’s scripts there were hardly well served by last-minute budgeting issues and poor design choices. If there’s blame to be attributed then I suspect weak exec production should attract more commentary rather than Chibnall’s output alone. But writers make good targets for critique – executive production is rather more amorphous, more awkward to pin down. A screenplay… that’s probably easier to lambast. And more recently, Dinosaurs garnered brickbats for its treatment of Solomon. But again, shouldn’t stronger exec production have picked up on the Doctor’s behaviour as a problem?

At the risk of courting controversy, this episode – along with non-Who work such as United, and Torchwood’s Adrift – helps build a strong case for Chibnall as a writer who can deliver something that few other current Who writers can: a genuine diversity of story types. Like Davies, Chibnall can convincingly tug at the heart strings – effortlessly melding the ordinary and the fantastical – but he can also write trad gothic horror and big, frothy adventures, and kitchen sink realism. Sometimes fandom values writers who play the same tricks over and over again – isn’t this what shows us we’re dealing with a proper auteur? – and in turn devalues writers who can hit the brief, turn the commission into something startling, and deliver a true range of stories. Somehow we assume this makes a writer more anonymous; a gun for hire or a plodding dinosaur in the TV industry rather than a voice bursting uniquely off the page. But I think that Chris Chibnall’s authorship lies, increasingly, with his ability to take the best bits of Davies and Moffat and make them anew. Without ever feeling like pastiche or slavish imitation, The Power of Three has a maturity and an energy and a sheer fittingness. It takes Moffat’s original and, let’s face it, rather vague idea and fashions it into something electric. We're given Davies’s core vision plus Moffat’s comedic vitality plus Chibnall’s chameleonic virtue… yes, it really is Who raised to the power of three. This episode is an innovative, worthy addition to Doctor Who's ever-unfolding C.V.

This review contains plot spoilers and is based on the UK preview of the episode.

North America's cultural influence is woven around Doctor Who like a double helix. The programme was born to a British public broadcaster already reliant on Hollywood for much of its output, and which had charged an iconoclast from Canada with the task of taking its native dramatic forms and reshaping them for a medium where the United States spent most and shouted loudest. Doctor Who could be characterised as the child of a secret encounter between the American adventure story and the classic serial. Selected American television westerns were thought by the BBC in the early 1960s to be unsophisticated material suitable for late afternoon viewing, although when under the purview of the old Children's Department, violent incidents were carefully removed. Doctor Who at first sought not to be the simple morality play British broadcasting creatives perhaps imagined the American western to be, though its influence was evident early on: Marco Polo had strong elements of the pioneer caravan form, and there is some irony in that The Gunfighters, an anti-western set in the American west using characters and situations borrowed from the genre, almost bookends the start of a period where the Doctor becomes much more like the nomadic cowboy than he was before, solving problems as an outsider rather than becoming embedded in his host society, and slipping away before that society can find him a role in its future.

Production office and subsequently fan mythology stated that The Gunfighters had shown that the western was not a genre Doctor Who did well; and yet for part of the 1970s, in the shadow of that 'Wagon Train to the stars', Star Trek, several Doctor Who stories could have been told in the western genre with minimal alterations beyond setting. Perhaps the reasons Doctor Who never visited the western after The Gunfighters were not only that the BBC wouldn't risk dressing a quarry or a Television Centre studio as a late-nineteenth century American town and invite unfavourable comparison with American film series, but that it would also draw attention to the programme's similarities to a genre from which it needed to differentiate itself for reasons of cultural identification (as a 'BBC' production) and of audience suspension of disbelief.

Once the programme was liberated from the multicamera studio, the western became a genre for Doctor Who to slay, once the time was right. In the 1990s, Philip Segal listed a remake of The Gunfighters among his possible scenarios for a Doctor Who series. When Russell T Davies drew up his guide to Doctor Who's format before production on the revived series began in 2004, his 'adventures in the human race' described potential space adventures in terms of human pioneers, language reminiscent of the American frontier.

It's taken seven series to reach the American west, and it is already one self-consciously filtered through European eyes and hands, in the shape of the western sets of Fort Bravo and Oasys near Almeria in Spain, known from the films of Sergio Leone and others. This might create expectations of a more cynical, unidealised depiction of the western setting, and to a limited extent these are met. It's to the credit of A Town Called Mercy that it acknowledges the moral uncertainties and ambivalences of the characters, something for which Dinosaurs on a Spaceship had little room.

A Town Called Mercy's setting combines preoccupations of the classical western, religious faith, social stability and the development of the community, with some self-aware historical contextualisation. The town of Mercy draws on a cultural commentator's view of the western as American nation-building device. In Isaac's words, it is five years after 'the War', presumably the American Civil War. In Mercy, people can find second chances; it encapsulates the new America of the frontier as imagined by later generations, seeking to create a better future by breaking from past divisions. Although these are never specified, making the town's preacher African-American is shorthand for one of them. It also distances A Town Called Mercy from a purely white vision of the United States, even if only at a token level. More successfully, the presence of a transgender horse satirises the heterosexual heroism of the traditional west and (through the name Susan) acknowledges that this is an old, old target, with its echoes of the song 'A Boy Named Sue'.

The preacher's prominence is important less for his ethnicity than for his presence as a marker of the role of religious belief in this story. The luckless Kahler-Mas is told in the pre-credits sequence to make peace with his gods, and Kahler-Jex later shows that his outlook on life and death is shaped by his religious conception of guilt and the afterlife. The Gunslinger, when challenged, says that the Kahler gods are no longer his; is this simply because his faith has been destroyed by the betrayal which turned him into a cyborg, or because faith is for those of the flesh, or because Jex had assumed the mantle of a creator-god? As the Gunslinger - Tek - regards himself as a 'monster', perhaps it is the latter, Jex having reduced Tek's rank in the order of creation.

If Mercy is an American utopia, a small town somehow surviving in the desert with little obvious means of support, its siege by the Gunslinger is a powerful image of later American dystopias. The Gunslinger's debt to RoboCop and the Terminator is obvious. His prosthetics are material expressions of the brutal combat experiences endured by Rambo and the friends of The Deer Hunter. In Doctor Who, this kind of war is to be imagined or viewed from the sidelines, but the screams of the unsuccessful victims of Jex's cyborg conversion programme are more than enough to help us. The Gunslinger's name and roboticness owe much to Yul Brynner's character in Westworld, but his poncho-like outfit recalls Clint Eastwood's Man With No Name from the Dollars Trilogy, as does the post-Civil War setting.

The Gunslinger suffers too because he has had another's dual nature imposed upon him: Jex's name and profession suggest Dr Henry Jekyll, from a gothic storytelling tradition. The American utopia has been made possible by his scientific expertise. Without Jex, Mercy would be low-tech even by the standards of 1870; it doesn't appear to be a railroad town. However, like Jekyll, Jex has been avoiding the truth about his own nature, and when this repressed side emerges it is sneering, supercilious, and callous. The result of his interference in Mercy is its isolation within what is in appearance and effect a magic circle.

A Town Called Mercy is an accomplished construction of histories and fictions received and revised, into which arrive the Doctor, Amy and Rory. The solitary Doctor of the first shot momentarily points to the debt the Doctor owes to the lone stranger of western myth, but Amy and Rory then appear, to remind us that the Doctor likes company, as the Daleks recognised two episodes ago. The Doctor begins this episode uncomfortably balanced again between the childlike and the childish, a Norman Wisdom or Eric Morecambe sure that he knows how to behave in a western saloon bar but unconcerned if his conduct is, after all, out of place. After two episodes where the Doctor's external insouciance seems to be vindicated, it is welcome to see him be made uncomfortable by his dilemma and have to work out what the right course of action is.

Isaac tells the Doctor that both aliens are good men who just forget that sometimes. Though there is no speech in which the Doctor agonises about the Time War, Jex's experiences and defence of his actions recall the trauma the Doctor shared with the audience in previous years. Jex might have decided where his debt was to be paid; so, perhaps, has the Doctor. Isaac's death temporarily removes the Doctor's outsider status; as marshal, he becomes part of Mercy and upholds justice against the temptation to be cruel and cowardly. This is all played successfully as credible character development. The lives and motives of human beings are depicted as focused on the smaller picture and shaped by fear of the unknown; no wonder the Doctor would prefer to deal with a Dalek any day. Matt Smith is always watchable but his Doctor is at his best when he gets to show his range. There is more room in this story for contemplation of the grey areas of existence, and that saving people isn't just about running around wisecracking amidst explosions. The sequence where the Doctor persuades Sean Benedict's Dockery (definitely a kinsman of Unforgiven's would-be gunman, the Schofield Kid) from a moral misjudgement is quieter than much of what we have seen this season, and the better for it. The episode as a whole is seemingly slower than Dinosaurs, but this is an illusion of pacing, and a further indicator that Saul Metzstein is an asset to Doctor Who's directing roster.

This is a good though problematic episode for Amy. Karen Gillan's performance is increasingly reminiscent of Elisabeth Sladen's Sarah, and her costume's leather jacket is reminiscent of Sarah's early outfits as well as the mature Sarah of The Sarah Jane Adventures. As Sarah often was, Amy is here the only female character with a substantial part. Mercy is a town of patriarchs: it has an Abraham (Garrick Hagon, fussily and methodically measuring light years from his youthful Ky) and an Isaac (Ben Browder, dirty in desert dust but clear-sighted and confident in his faith in his town's mission). Yet it is women who tell its story and foster identity. Gender stereotyping it may be, but this is what Amy successfully does in this story, recalling the Doctor to what she has learned from him, and overruling Rory's emphasis on expedient action. We could probably have done without the stirring music as Amy makes her 'we have to be better than him' speech, though.

Murray Gold seems to enjoy drawing from a musical tradition he's not yet exploited in Doctor Who, with guitar strings referencing Ennio Morricone's scores from the Dollars trilogy. Once inside Jex's spacecraft, there is a riff on 'Journey of the Sorcerer' too, perhaps a nod to the ship's Hitch-Hiker's Guide to the Galaxy-like graphics. The Doctor's farewell theme borrows from earlier in Gold's corpus, for another tale of pioneer idealism undermined from within, The Doctor's Daughter. We may have been here before, but A Town Called Mercy is the more coherent of the two and more confident in its use of motifs.

This episode perpetuates the electric bulb motif seen in stories earlier this season. Within the context of the episode's plot, it suggests the fragility of Jex's electric lighting system and informs Jex that the Doctor has found his intact spacecraft. However, there are other fluctuations which are less easily explained in this way, which include one where Amy explains that she, Rory and the Doctor were on their way to Mexico and the Day of the Dead. The Doctor's face is sorrowful here; like Henry in Steven Moffat's oft-cited inspiration, The Time-Traveller's Wife, he might have foreknowledge of the end of the most important relationship in his life.

Toby Whithouse's writing has often relied upon awareness and exploration of the stories people tell themselves and each other to confirm their senses of self and get through life on a day-to-day basis. A Town Called Mercy is a good example of this. It is sustained by a unified visual sense, with strong cinematography and design. In its play with the history of places and people and the representation of that history in fiction, it is a great advance on 2010's The Vampires of Venice. In its blending of western and fairytale genres it restates Doctor Who's magpie nature and reinforces the programme's claim to be identity-myth itself while proving that it can be at home in the imagined American past and thus viable in the globalised present.

This review contains plot spoilers and is based on the UK preview of the episode.

Amongst the best episodes of the last series of Doctor Who was for me Toby Whithouse's The God Complex, a beautifully made piece of television that was happy to steer the Doctor towards much darker places. Whithouse has history with Doctor Who, having also previously written School Reunion and The Vampires Of Venice. But with A Town Called Mercy, he's put together something very rare, a Doctor Who Western which actually works, the previous attempt in the shape of "The Gunfighters" is not an all together well regarded effort, this is a vastly superior episode.

And this is a slightly darker proposition, too. After the comparable lightness of Dinosaurs On A Spaceship, A Town Called Mercy pushes the Doctor to more uncomfortable emotional places than we've seen this series thus far. The cracks and strain on the Doctor are starting to show. Series 7 has demonstrated the comedy skills of Matt Smith extremely well and we also get to see his strengths when things go more serious. Smith is just terrific, his faux swagger as he asks for something strong (a cup of tea with the bag left in) while he nearly chokes on this toothpick is in wonderful contrast to his rage at Jex (him shouting at him to sit down nearly caused my eyebrows to fly off my forehead). Its also interesting to compare Jex and The Doctor, deep down they both seek the same thing.

The Doctor, being shown this reflection of himself can't cope and does something that may make some fans uncomfortable, it takes a simple statement of "this isn't how we roll" from Amy to bring The Doctor back to Earth and to remind us that The Doctor seeks his redemption through the actions of his friends. Gillan and Darvill are still at their best, with another unspecified period away from The Doctor our companions relationship seems once again to be on an even keel but if the episode has one major flaw its that Amy and Rory don't get a great deal to do, this very much being a tale of The Doctor's conflicted nature. This being said it does bring Amy Pond a little further forward than we've seen her the past week or two. It also exists pretty much as a standalone piece, even though there's the odd hint of undercurrent developing, Jex's comments on motherhood being both touching and ominous.

The production values ate absolutely terrific, Doctor Who has taken on three different genres this series so far, and each of them has looked outstanding. That's no small feat, and A Town Called Mercy looks the best of the lot so far. The wild west landscapes look appropriately sunblasted and desolate, A Town Called Mercy is the most cinematic of the three episodes we've seen this series to date.

As for the episode itself, Whithouse certainly knows his onions when it comes to westerns. He throws in a few more ingredients, too, with a sense of The Terminator in places, and a tip of the hat to the mighty Westworld in The Gunslinger with a healthy dose of humour chucked in, the horse who really prefers to be called Susan especially amusing. The early part of the episode, where he's having fun with the genre and exploring it, is arguably when A Town Called Mercy is at its strongest, as the episode progressed I found myself wondering why The Doctor didn't just use the TARDIS to solve the whole problem, this is addressed somewhat within the episode however its a little dissatisfying, much as in "The God Complex" Whithouse tends not to let a slightly shonky plot holes get in the way of the message he's trying to get across.

There is a small sense for me that there was a slightly better episode that could have been made out of the mix of ingredients here. That's not to say A Town Called Mercy is a bad piece of Saturday night telly, far from it. As it stands, though, A Town Called Mercy is a very good episode, with some excellent moments, all draped in utterly lush visuals, another success for the much vaunted "flexible format" of Doctor Who and another blockbuster delivered with confidence and appropriate Wild West swagger.