![Doctor Who: The Invisible Enemy](https://i3.wp.com/image.tmdb.org/t/p/w185/3htLgF2deK1noyaayidavHlE3vS.jpg)
Plot
A three-man rocket crew are nearly done with their mission to Titan Base until a course change puts the rocket in the path of a strange cloud in space. By the time they arrive, they have come under the control of a sentient virus which threatens the galaxy. When the TARDIS picks up an emergency message, it flies into the cloud, infecting the Doctor. To save himself and others, he must undertake a dangerous journey.
Writer | Dave Martin |
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Director | Derrick Goodwin |
Actor | Tom Baker, Louise Jameson, John Leeson |
Country | United Kingdom |
Production | BBC |