Doctor Who: Invisible Enemy

Doctor Who: Invisible Enemy

Doctor Who: The Classic Series

  • Genre: Sci-Fi & Fantasy
  • Release: 1977-01-01
  • Rate: TV-14
  • Episodes: 4
  • iTunes Price: USD 4.99


While answering a mayday, the TARDIS passes through a mysterious cloud. Alarmed, Leela senses a malevolent presence that leaves the Doctor fighting for his mind. Could the key to survival come from Professor Marius and his dog-shaped computer, K-9...?


Title Time Price
1 Invisible Enemy, Episode 1 23:08 USD 1.99 Buy iTunes
2 Invisible Enemy, Episode 2 25:13 USD 1.99 Buy iTunes
3 Invisible Enemy, Episode 3 23:15 USD 1.99 Buy iTunes
4 Invisible Enemy, Episode 4 21:22 USD 1.99 Buy iTunes


  • A great story

    By doctorendub
    This is a great story, featuring the first appearance of K9, and a classic Dr. Who plot. Who doesn't love it when the Doctor uses his brain to outwit a monster? I only wish that the stories on either side of this story (Horror Of Fang Rock + Image of the Fendahl) were also available.
  • Ok for some Tom is the Doc.. but..

    By TeganDrWho
    I hope to see Peter Davison's episodes REAL soon. But Apple iTunes heard the many voices that wanted classic Doctor Who on here--which I frankly think is STILL the best.. better then the new series!! This is the introduction to K9 who I adored, and John Leeson was the best actor for the voice. This is a rather enjoyable story and I recommend getting it, especially if your more of a Tom Baker fan. But please, lets see some Peter Davison-- BEST doctor ever in the 80s!
  • Tom Baker is DR. Who...

    By nekogami13
    For many of us, Tom Baker IS Doctor Who. These are the episodes shown by my local PBS station when I was growing up, these are the episodes that made me fall in love with the Doctor. PS. iTunes people-could you organize these classic episodes, ie. by actor playing the Doctor and by episode #?
  • Da Bomb!

    By Extermiknitter
    I'll admit it, I am 34 years old and I love K-9. This is the story where K-9 gets his start and I think it is a great one. If you are a watcher of the new series of Doctor Who and was wondering where K-9 came from THIS is the story to watch!
  • I'm running out of space on my iPod

    By dalekbigboy
    Not a very original idea, really, but K9! I mean c'mon! Here's where all that starts! I just have one question: Where are the Daleks? Genesis of the Daleks, link to the new series! And so many more! Bring on the Cybermen too. Also go 5-8 too. And can we have an season or two of #1?