An alien virus infects the human crew of a refuelling station on Titan, one of the moons of Saturn. The Doctor is also infected and becomes possessed by the will of the Nucleus.
This data is drawn from the Radio Times magazine between 1923 and 2009. It shows what was scheduled to be broadcast, meaning it was subject to change and may not be accurate. More
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This data is drawn from the data stream that informs BBC's iPlayer and Sounds. The information shows what was scheduled to be broadcast, meaning it was/is subject to change and may not be accurate. More
