"The Zygon Invasion"/ "The Zygon Inversion"

Doctor Who very rarely “does politics” and, in the past, the results have been mixed. The Green Death managed to be an engaging story as well as informing the viewer on environmental matters and their political ramifications and The Curse of Peladon takes a look at an independent body joining a composite political entity that could be applied to EEC/EU membership. However, we also have the less successful likes of The Mutants in the 20th century and the ‘massive weapons of destruction’ which form the weakest part of the weakest story of the Eccleston era. "The Zygon Invasion"/ "The Zygon Inversion" immediately attracts, due to its irresistible title(s), but it also attempts to deal with some present-day hot-button issues - especially bearing in mind the events of 31 October and 13 November of 2015, chillingly close to broadcast. These aims have to hit their mark, especially now and the degree to which the story succeeds is completely unprecedented.

Following the events of "The Day of the Doctor", 20 million Zygons have assimilated into the human population. The overwhelming majority are peaceful, but a few of the younger generation are growing restless with the need to hide, to conform and have radicalised to form the group Truth or Consequences. The elder generation are appalled, but insist it is best for them to be dealt with by their own. It doesn’t take a genius to realise how much of this applies to radical Islam but the script by Peter Harness makes the issues easy to understand, without grossly simplifying them. Both sides spout hateful rhetoric, yet the viewer can understand the motivations of the characters spouting it. However, the dangers of radicalisation are only a part of the whole, for Harness and Moffat are just as keen on attacking modern warfare, indeed the entire concept of war itself. One abhorrent aspect of modern warfare that the vast majority of people just ignore or worse, accept, is the use of drones. Killing has become like a computer game, where, in a place of complete safety, operators can target images on a screen. Dehumanising the enemy makes their killing more effectively, and a dehumanised target is a faceless target. This story simply, yet devastatingly effectively, shows what happens when the faceless are given a face. Daniel Nettheim’s direction is unshowy, yet devastatingly effective in realising this and many other things. It takes a second to realise that the tumbleweeds in New Mexico are something more sinister and the dynamics of the Doctor negotiating peace with what looks like two little girls in a playground are fully explored for both incongruous comedy and grim drama. The Invasion of the Body Snatchers aspect of the Zygons is alluded to more strongly than ever before, most notably the 1978 version. It goes without saying that the production is fantastic, with the scene with the forced transformation of the peaceful Zygon being a deft mixture of the grotesque and the poignant.

The dialogue is brilliantly effective – the scene where the Doctor and Colonel Walsh have to give a pep talk to the UNIT soldiers follows a scene where they have a fundamental disagreement. Their speeches complement each other, yet do not betray their disagreement. However, it is in the key scene with the Osgood boxes that concept, dialogue, direction and performance combine to form one of the greatest sequences the programme has ever had in its 52-year history. War, the Doctor points out, is both preceded and succeeded by diplomacy and is the middle-man that needs cutting the most. Capaldi truly gives one of the best ever performances in the title role and, with the kindly smile he gives Bonnie, you can swear that you see all 2000 years of the Doctor’s life in his eyes. Jenna Coleman is great as both Clara and Zygella (sorry, Bonnie!) and we have the welcome return of Jemma Redgrave’s Kate and the brilliant Ingrid Oliver as, the far steelier, but still adorable, Osgood. We say goodbye, all to soon to Jaye Griffiths's Jac, but hello to Rebecca Front as Walsh - there is not a hint of The Thick of It when she and Capaldi share scenes.

"The Zygon Invasion"/ "The Zygon Inversion" doesn’t end with a bang, but neither does it end with a whimper. Zygella doesn’t betray the peace at the last minute and Kate doesn’t order UNIT to blow the Zygons up. What we have is better than a bang, a crescendo. "The Zygon Invasion"/ "The Zygon Inversion" is a story that I am tempted to throw superlatives at – ‘the best UNIT story since Inferno’ springs to mind. However, what I will say is this; there may be better stories than this one, but I cannot think of one that better shows how marvellous a programme Doctor Who is.

NEXT: "Sleep No More"

"Dark Water"/"Death in Heaven"

There are a fair few things that are a bit dodgy about the two part finale to Capaldi’s first series. Some of the explanations for certain concepts are a bit woolly, the motivations for pivotal characters in relation to the events depicted require something of an imaginative leap on the part of the viewer. However, "Dark Water"/"Death in Heaven" is so engrossing that these observations are totally blown away when one is watching it and the real impact of the ideas and emotion of the story ensure that they cannot even come close to ruining it. Rachel Talalay brings her considerable experience to bear in a very assured production with epic action scenes working hand in hand with more intimate sections, combined with some stunning visuals, especially the technological vault of the firmament that features early in the story.

The Cybermen of 21st century Doctor Who may physically revamp themselves less than their 20th Century forbears, but conceptually, it is another matter. They started out (as did their predecessors) as humans who took spare part surgery a step too far. In "Nightmare in Silver", they were a cyborg collective controlled by a central intelligence. Now, they are nothing short of being a cybernetic undead plague controlled by a hive mind – for the first time ever, the Cybermen seem genuinely unstoppable. Conceptually, the Cybermen’s effectiveness has always been driven by the fact that they are based on the fear of death and nowhere has this been more chillingly explored than in this story. The afterlife that we have been teased with (or 'NetherSphere' as it is dubbed) is simply a reservoir of minds that have been harvested throughout human history, to be installed into Cybermen. The existential horror of the Three Words would be arguably going too far for a programme made for children, if it were not part of the story’s aim of death and how we can deal with it.

However, although the Cybermen are central to the plot, the heart(s) of the story are the characters in it. The key event in the story is the totally unexpected death of Danny in the opening scene of the story. It occurs in an all too common way, making the loss seem more real than others have been. Clara’s reaction to Danny’s death is as unexpected as it is believable and the scene where Clara tries to blackmail the Doctor is completely convincing thanks to Jenna Coleman's astonishing performance. She is complemented by great work from Samuel Anderson as Danny, showing real grit combined with vulnerability. UNIT make a very welcome return with Jemma Redgrave’s brilliant Kate Stewart and the sad demise of Ingrid Oliver’s Osgood. Sanjeev Bhaskar’s Colonel Ahmed isn’t as lucky as his wife’s character was four years ago, but it is always good to see him, as is Chris Addison. However there is another very important returnee. I’m sure I wasn’t the only one who had guessed that Missy was the Master. Michelle Gomez’s is, physically, as close as one can get to a female Roger Delgado - both possessing 'demonic' good looks – and her unhinged, yet controlled performance makes her great fun to watch – yet we do not forget the sheer wanton sadism of her murders. It proves, without a shadow of a doubt, that changing the sex of a regular character can work perfectly well, if the right actor is found...

This series of Doctor Who has been seen by some as being darker in mood and having the Doctor himself as a darker character. The Doctor has less time for fools in this incarnation and certainly less time for tears. However, it is clear that this is still the man we love; if there were any doubts, his unconditional forgiveness of Clara silenced them forever. The Doctor has wondered whether he was a good man, has been called a good Dalek, but here, he embraces what he truly is – an idiot. His anger is still real, as his enraged frustration over Gallifrey show, but he is still that madman with a box. I never doubted Peter Capaldi for a second and his performance in this story caps an astonishing run.

Peter Capaldi’s triumphant first season makes me look forward all the more to a very Frosty Christmas...

NEXT: "Last Christmas"

"The Day of the Doctor"

The anniversary specials of the programme have always generated interest, but Doctor Who in 2013 is a mainstream success in a way it hasn't been since Dalekmania in the 1960s. It is probably no exaggeration to say, therefore, that "The Day of the Doctor" is probably the most eagerly awaited episode of Doctor Who since "Rose". It has to satisfy the wide mainstream audience that will tune in, whilst keeping an eye on the fans, some of whom remember William Hartnell, some of whom were not even born when Christopher Eccleston was the Doctor. It has to pay tribute to the 50 years of television history that preceded it, whilst trying to tell an engaging story. It is a pleasure to state that the episode manages to succeed in all of these aims on a level that genuinely surprised even me.

More so than any of the other anniversary specials, "The Day of the Doctor" works as a regular Doctor Who adventure, this one being a fiendish plan by the Zygons to take over the Earth. The use of the pictures as suspended animation makes that part of the plot seem like a bright and breezy season opener, with the added bonus of featuring a well-loved adversary from yester-year. However, although the Zygon plot is easily enough to sustain a story in itself, taking place in two time zones and featuring a Zygon Good Queen Bess, this is only the gateway into a deeper story. For the pictures are relics of Gallifrey and of the darkest day of the Doctor's life...

The key thing the audience remembers from Anniversary specials is the current Doctor meeting with past incarnations and here, we have the very welcome return of David Tennant, playing the Doctor like he'd never been away. Joining him is the incarnation we must now call the 'War Doctor' played by the legendary John Hurt. I stated at the end of his era that I thought Tennant was the best leading man the show had had since Hartnell and Hurt is an acting legend, one of the finest in the world, who has always been thoroughly mesmerising in every role he has played. I can think of no better praise for Matt Smith than stating that he completely holds his own in the presence of Hurt and Tennant. Moffat uses the three Doctors more intelligently than his predecessors did – we really get a sense of the centuries dividing them. The War Doctor is definitely the warrior that his predecessor chose to be, but he has not made the key decision that has haunted his successors. It is also a good choice to have a previously unknown incarnation be brought to the fore – the War Doctor has no nostalgic connotations, so he can stand in for all the previous incarnations more effectively, which makes his criticisms of his successors' characteristics all the more potent. Some portions of fandom criticise the perceived modern overuse of the sonic screwdriver, which is alluded to by the War Doctor and then it is shown why the sonic is used so often, as, for the first time this century, the Doctor is locked up! The War Doctor initially has little respect for the flippancy of his successors, but it becomes clear that it is a coping mechanism for something he has not yet done. Little kisses to the past abound, from the title sequence to the fulfilled promise of all the Doctors making an appearance.

Nick Hurran manages to make the episode both completely epic, with the stunning fall of Arcadia and also very low key in the quieter moments. The 3D photography really serves the epic space battles well, but the episode never devolves into a mere 3D showcase. The design is opulent and contains great little touches – apparently the original version of Le Radeau de la Méduse contained no humans! Hurran assembles a great cast, with the very welcome return of Jemma Redgrave as Kate Stewart, a fun turn from Joanna Page as Elizabeth and her Zygon double. There is also the wonderful Ingrid Oliver as Osgood (related to a certain UNIT technician who assisted at Devil's End?) Jenna Coleman continues to sparkle as Clara, whether impersonating witches or out-thinking three incarcerated incarnations of the Doctor. However, there are two minor parts that made my jaw drop – a brief flash of Peter Capaldi's eyes and (possibly) the first uttered words of the Twelfth Doctor; and the return of the most iconic actor to play the Doctor in the 20th Century. Whoever the Curator actually is, it is a true joy to see Tom Baker again!

The decision to rescue Gallifrey may not be acceptable to some, but the way in which it is brought about is excellently constructed. Moffat wants to rescue the Doctor from the burden of committing the genocide of the Daleks and the near omnicide of his home planet. We found out the importance of the name of the Doctor and now we find out what must be done in that name. The emotional consequences are still there, as the Ninth and Tenth Doctors forget what the War Doctor did in his final days. The Doctor has had many titles given to him, but where once he was Death, the Destroyer of Worlds, he is now the more famous aspect of Vishnu, that of Preserver < / pretentiousness >. Moffat's script is superlative, writing and rewriting myth with aplomb, without losing the little touches of humour.

I remember "The Five Doctors" when the programme was in the autumn of its success and I also remember Remembrance of the Daleks and Silver Nemesis when the winds of winter were blowing. The story looks back at the programme's history, but makes sure that it does not rest on its laurels and makes a decisive step forwards into the future. In this November, 50 years after it started, "The Day of the Doctor" is another highlight of a glorious second summer that shows no sign of coming to an end. Long live Doctor Who!

NEXT: "The Time of the Doctor"