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.
Genre: Science Fiction, Drama, Adventure
Stars: Tom Baker, Louise Jameson, John Leeson, Michael Sheard, Brian Grellis, Jay Neill
Crew: Derrick Goodwin (Director), Dave Martin (Writer), Bob Baker (Writer), Robert Holmes (Script Editor), Graham Williams (Producer), Dudley Simpson (Original Music Composer)
Country: United Kingdom
Language: English
Studio: BBC
Runtime: 100 minutes
Quality: HD
Released: Oct 22, 1977
IMDb: 3.8
Keywords:time travel
