By 2014 I was tantalisingly close to completing my Doctor Who DVD collection. Notwithstanding the agonising over whether to buy the DVDs with currently missing material (The Moonbase for example) a few stories remained, not least this one. And while it was kept until last, it was certainly one of the best!
First of all, let me share why such an excellent adventure was off the shelves for so long. Not only did the BBC get rid of the original broadcast tapes for the Hartnell and Troughton eras, Jon Pertwee’s era was also badly affected. While his entire era survives, certain of his stories only survived in broadcast quality in black and white – examples including Terror of the Autons, The Daemons, and The Ambassadors of Death. For most, they were able to procure low grade colour versions, which could be combined with the high resolution black and white prints to produce something approximating the original broadcast tape – the Destruction of Time website has a good account of this process.
The Mind of Evil is somewhat unique however, in that no colour footage at all survives of the story. To recover the original colour, the BBC had to use an ingenious process called “Chroma Dot Recovery.” In short – when the BBC converted the original broadcast tapes to black and white film to sell overseas, little dots (the aforementioned chroma dots) were included, indicating what the original colour had been. Using this information, the producers were able (at length and great expense) to recreate the original colour, as they had done for the Ambassadors of Death – a video showing how this process was used for Dad’s Army can be watched here.
So far so good. Except episode one doesn’t have any chroma dots! As Richard Molesworth would explain in Wiped! the dots were due to a mistake in the process of creating the film, and for the first episode the BBC technicians had processed the film properly – leaving no dots! For us in the 21st century, the only way we are now able to enjoy this episode in colour is thanks to the reconstruction team who painstakingly coloured in EVERY SINGLE FRAME of the 25 minute episode. With that in view, the greatest miracle is that they were able to produce the DVD at all!
Once complete and colourised however, the story is far from a disappointment, and is a real highlight of the U.N.I.T. Era of Doctor Who. The Doctor and Jo travel to Stangmoor Prison to watch a ruthless criminal be processed by the ‘Keller Machine’, a device supposedly able to deprive individuals of their most evil impulses. The Doctor suspects all is not well, and he is right to do so – for his old enemy the Master is at work in the background. The machine is in fact an alien creature that targets the worst impulses of those who come into contact with it and imbibes them. The Master proposes using the device to seize control of the prison, then to use the inmates to steal a highly destructive weapon from U.N.I.T (it must be acknowledged that this story is not Captain Yates or Sergeant Benton’s finest hour …)
Convoluted though the plot perhaps is, as ever it is the principle stars that make the story a joy. Delgado and Pertwee shine in every scene, especially where they face one another, and Katy Manning very quickly shakes off the damsel in distress stereotype of Terror of the Autons, being active and assertive. And of course, who can forget the wonderful moment in episode five where the Brigadier infiltrates the prison, dressed in civvies and affecting a Cockney accent …
You may reach the end and ask one pertinent questions: why is the Master trying to start World War 3? Why seize control of the prison in such a convoluted manner? How come Benton and Yates are the only people not murdered by the convicts? To pick on these quibbles however is to rob yourself of the enjoyment of an excellent, gripping, and entertaining drama. It may have been the Pertwee story I waited longest for, but the wait was certainly worth it!
Next Time: Set your multi-loop stabiliser for Douglas Adams’ first Doctor Who adventure