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Doctor Who - The Invisible Enemy

4.1 out of 5 stars  See all reviews (14 customer reviews)
Price: 13.99
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Frequently Bought Together

Doctor Who - The Invisible Enemy + Doctor Who - Image of the Fendahl [DVD] [1977] + Doctor Who - The Sun Makers [DVD] [1977]
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Product details

  • Format: Dolby, PAL, Colour, Subtitled
  • Region: Region 2 (This DVD may not be viewable outside Europe. Read more about DVD formats.)
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (14 customer reviews)
  • ASIN: B001UP6S3M
  • Amazon Bestsellers Rank: 26,164 in DVD & Blu-ray (See Top 100 in DVD & Blu-ray)


Starring Tom Baker, The Invisible Enemy is a four-part story featuring the screen debut of K9, the robot canine. When The Doctor answers a distress call from a shuttle crew who have been infected with an intelligent virus, he too becomes contaminated. The only solution is to create clones of The Doctor and his companion Leela (Louise Jameson) to enter his body and fight the virus.

Customer Reviews

Most Helpful Customer Reviews
7 of 8 people found the following review helpful
3.0 out of 5 stars Contact has been made! 24 Feb 2003
Format:VHS Tape
Whilst by no means one of the all-time Doctor Who classics, “The Invisible Enemy” is still an entertaining and enjoyable story from Tom Baker’s era, with some interesting elements too! This story is probably most famous for being the one that introduced us to the trusty robot dog K9, who became a major hit with the younger “Who” fans, and it’s easy to see why! I remember being in the school playground with my mates after the first K9 episode and us enthusiastically intoning “affirmative” and “negative, master”! Not to mention the K9 replicas we tried to make out of Lego and cardboard boxes. The automaton himself makes an impressive debut in this story and adds to some of the show’s best action sequences. Whether or not having him in the show as a long-term fixture was a good thing is a moot point, as some viewers saw him as something of a gimmick, often making it too easy for the Dr to escape dangerous situations. I’ll always have a soft spot for him though – move over R2D2! K9 rocks!
Enough of that, what about the rest of the story? It starts off with the crew of a space shuttle who become mysteriously “infected” when a strange cloud envelops and attacks their craft. On arriving at their destination, the planet of Titan, they kill all but one member of the Titan base. Meanwhile, the TARDIS encounters the same outer space cloud and the Dr becomes infected too, although his companion Leela seems to be immune. The TARDIS materialises on the Titan base and Leela tries to get help for the Dr, but it seems that the alien virus, the “Nucleus” that infected him, has already chosen the Dr as its “host” body and it must be protected at all costs...
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5 of 6 people found the following review helpful
3.0 out of 5 stars An Amusing Trip Into The Doctor's Mind 6 May 2003
Format:VHS Tape
At a key point in 'The Invisible Enemy' the Doctor discovers that cloning experiments first took place in the year 3922 (or some similarly far-flung date), a gentle reminder that recent advances in genetic science have come at us far quicker than could ever have been expected. That isn't to imply that 'The Invisible Enemy' explores cloning in any serious way: it doesn't. But it does demonstrate the wonderfully throw-away approach to science in Doctor Who stories, or what in Star Trek is called 'techno-babble'. But where Star Trek is quite earnest and serious in its approach to 'science', taking it all 'very seriously', Doctor Who stories often seem to fling 'real' science facts into the mix in the way you might fling chocolate chips into a dough mixture: you don't need to be precise, because all that really matters is that you don't forget to put them in.
The reason 'The Invisible Enemy' is still entertaining is the combination of witty dialogue and eye-catching design. Tom Baker frequently proves to be the saving grace of Fourth Doctor stories, and here is no exception. Both the Doctor and Leela are served well by a script which is clever, slightly ironic, and full of good dialogue ("You megalomaniacs are all the same"), and save for a few dud lines (usually where the script is desperately trying to cover some distance in a short space of time with exposition from either Leela of the Swarm) Bob Baker and Dave Martin turned out a solid (if not classic) story.
However what stands out in 'The Invisible Enemy' is the time that appears to have gone into giving the story a distinctive look and atmosphere.
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1 of 1 people found the following review helpful
2.0 out of 5 stars silly but entertaining. 1 Jun 2004
Format:VHS Tape
This is basically a pantomime version of the Omega Man in outer space (the Doctor and Leela are beseiged by possessed victims of a plague virus outbreak who've turned into gun-crazed killers) which then turns into a panto version of Fantastic Voyage (miniaturised clones of the Doctor and Leela are injected into the Doctor where they meet the monstrous germ!). All in all, silly, cheap and devoid of reality, but it is rather fun. The giant lobster takes the cake, however!
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1 of 1 people found the following review helpful
5.0 out of 5 stars Contact Has Been Made! 8 Jan 2014
I remember watching this story when I was quite young and it did scare me. The whole being taken over by a malevonat force thing and turning goodie into virtually unstopable baddies. Leela was at her finest in this story, I always fancied her, the leathers and those gorgeous eyes! But I digress. A great story, one of my favorites and no it hasn't aged well with regard to the rather clunky and at times laughable special effects. But that was the magic of Doctor Who then.
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1 of 1 people found the following review helpful
4.0 out of 5 stars Doctor Who and the Langoustine of Death 24 April 2009
Format:VHS Tape
Now available on DVD as part of the K9 box set, this is the story where The Doctor and Leela first encounter the robot dog; a substitute pet for Professor Marius, a scientist working at the Bi-Al Foundation, an asteroid circling Titan, one of the moons of Saturn. The titular enemy is the leader of 'the swarm', a space virus that infects the crew of a spaceship destined for Titan and which plans to use the moon as its new breeding ground.
The story is notorious for its 'giant prawn'; an enemy that probably ought to have remained invisible as the SFX available to the production team certainly weren't up to bringing it to life (as an avid reader of the Target Doctor Who novelisations I was misled by the cover's superb depiction!) This aside, there are some good performances and some memorable moments; apart from K9 there is the redoubtable Michael Sheard - Mr Bronson from Grange Hill and a Doctor Who staple in the 70s - and a great sequence where The Doctor and Leela are cloned and injected into the Doctor's bloodstream to try and defeat the virus that has infected The Time Lord.
Overall, a great idea that is let down by its SFX but which is still a fun and engaging adventure in classic late 70s stylee.
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Most Recent Customer Reviews
5.0 out of 5 stars and great to see
my second fav doctor, and great to see K9
Published 1 month ago by T P Bailey
5.0 out of 5 stars Excellent.
Quality excellent, and subtitles very helpful. Well worth paying the price for, as I already had the DVD K9 and Company, and I didn't want to pay for K9 Tales on DVD. Read more
Published 10 months ago by Greg Chapman
4.0 out of 5 stars ATTACK OF THE GIANT PRAWN
This story was created to include a new assistant. the Noisy and clunky K9!!. this is a rip off (homage) to the film Fantastic journey and later reproduced by Steven Spielburg in... Read more
Published on 25 July 2012 by Shawn Hosmer
4.0 out of 5 stars OK
Tom Baker. A great doctor. But the story? An invisible enemy or a way of saving money? I advise you to think before getting this.
Published on 7 Jan 2010
5.0 out of 5 stars Doctor Who- The Invisible Enemy
The Invisible Enemy is a superb story. A proper introduction of The Doctor's faithful companion- K9. The graphics and space sequences are brilliant for the 70's show. Read more
Published on 8 Nov 2009 by R. Peck
4.0 out of 5 stars Why?
I Can't see the point of selling this dvd seperatly from K-9 Tales boxset, is it you can't stand K-9 and Company or is it that this ones worse? Read more
Published on 6 April 2009
5.0 out of 5 stars still five stars for entertainment....
Yes even though even i wonder why the Doctor seems to have no blood in his brain when he and Leela are cloned and injected into his neck, and how they can breathe as well... Read more
Published on 23 Aug 2007 by big mad doctor who guy
4.0 out of 5 stars Excellent!
A wonderful introduction the much overlooked and much under-rated K-9. There are also some giant prawns thrown in for good measure. Read more
Published on 26 Sep 2002
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