The Invisible Enemy

When I first saw this story, my TV developed a fault, forcing me to watch it in black and white. The idea of journeying-to-the-centre-of-the-brain was quite popular that week - Danger Mouse went through four episodes of this just like the Doctor. Looking back, I was surprised I could take the middle segment of the story seriously as a cartoon mouse and gerbil beat the Doctor and Leela into the controlled brain of a main character (in their case Colonel K) to find the evil squatters at the heart. While Time Lord and Savage fought phagocites and evil clones, DM found himself fighting literal funny bones as well as getting lost inside the body. However, this story has K9 in it, so it must be taken with all the respect it deserves. 

Looking at it today, I do notice how disparate the episodes are. The first one is a sort of 1970s Event Horizon with a ship full of well-rounded characters (well, as well-rounded as you can get with one minute of dialogue between them) being plunged into chaos then, possessed, begin to kill off their innocent co-workers as they return. The scenes of the spacesuited carriers hunting down the crew room are more eerie than when they reveal their infection (presumably capitalizing on the success of The Ambassadors of Death). I do wonder, though, why the infected spacemen begin to grow silver fur around their eyes. Why? If, for example, they were beginning to mutate into giant prawns, it would be more scary if you asked me. Of course, seeing the pregnant prawn in the final episode, it would not have done to story any favors to show the mutation complete, but it could be mentioned in passing. 

I'm surprised I liked the fourth Doctor so much during my childhood. His only competitor was the Seventh, but all the stories of the fourth Doctor seemed to have him possessed or evil. The Invisible Enemy, The Invasion of Time, The Face of Evil - his uncharacteristic anger during the Horror of Fang Rock included. Of course, now I know the Seventh Doctor is the manipulative, evil and amoral Time Lord, but back then he seemed like Davison at his most naive. Well, I had only seen Season 24 at the time. 

The second episode has a cool ER 5000 feel to it and maybe the story could have been better if they'd concentrated on that angle, with Leela wandering round the hospital and seeing how different the hospital of the future is from now. The Doctor suddenly cured for five minutes long enough to re-explain the plot confuses me even now, but I am easily-confused. Oh yes, and while the explanation of the Kilbracken technique explains the clothes, it doesn't explain why they are linked telepathically to their hosts - and if so, why isn't the cloned Doctor infected? 

The Fantastic Voyage in part three is supposed to take less than eleven minutes. I suppose it could work if you think of every few scenes happening at the same time, or if the clones' reduced size increases their lifespan, but the idea of time running out is clumsy. Why not simply have the virus ready to take over in ten minutes unless they are stopped. While I was intrigued by the Doctor's airy claim that his telepathy was curtailed when the Time Lords kicked him out (and the fact he instantly changes the subject when Leela asks him about it) I didn't really feel the clones knowing they were going to die whatever happened worked. Leela seems very cheerful despite the fact she will be dead in five minutes. 

The scene where the Doctor argues with an intelligent virus about sensible ambition inside his own brain feels very normal considering three episodes ago he was discussing strategy with a blob of jelly on the steps of a lighthouse. The death of the clone Doctor and Leela could have been very dramatic but, well, it isn't. It's shot terribly: the Virus shouts that it has won; the Doctor falls over, shouting 'get out of my brain'; Leela runs in and falls over; the Doctor turns see-through; a gunshot; and then all that's left is a smoky hole in the ground and Leela's knife and hair. Knife and hair. That don't dissolve. Give me strength. 

The fourth episode tries to pull itself back into reality - and this is no mean feet with the pregnant prawn burbing in the background. Why couldn't it be red? WHY? The Doctor taking the piss out of the monster normally works in alleviating tension, but there is no tension here in the first place. I was surprised the scene shown in the novelization when Marius tries to infect the Doctor and fails isn't in the program. Assuming it never happened, that would explain why they think he can 'be consumed' when he is clearly immunized. Back to Titan for a race-against-time, the third in the story and better. K9 breaking down could have worked better if this didn't happen so often but it does re-state the Doctor's 'never trust gimmecky gadgets' philosophy. Him leaving Leela and K9 behind was quite exciting the first time, but it's supposed to be comic relief. Also, there's a terrible bit of editing - Lowe fires at the Doctor, who drops the box of antibodies, smashing it and forcing h! im to use Leela's plan. What we see is a shot of the eggs bubbling while we hear Lowe firing, so the box of anti-bodies seems to disappear and we have no idea why the Doctor changes tactics. 

Finally, Titan is destroyed (surely wrecking the solar system's balance and not a good thing) and the Doctor gets out his Sedan chair in his new control room to match the hatstand and using the scanner alcove and a bookshelf. K9 fits in quite well, and it would have been simple for the TARDIS simply to have gone wrong while trying to return the marvellous metal mutt to Marius (ooh, aliteration). Instead there is the annoying scene with Leela acting like a four-year old to the Doctor's brooding parent. 'All right, Leela, you can have K9 but you'll have to feed him and take him for walks because a dog isn't just for Christmas, especially when you're a time traveller'... 

The Invisible Enemy isn't perfect. But it entertains for the two hours needed to watch it.