The TARDIS lands on a space station orbiting the earth in the distant future. It's seemingly deserted, but the Doctor, Sarah and Harry soon discover that they are not alone. Thousands of humans - the only survivors of the human race - are in cryogenic sleep, and while they've slept their Ark has been invaded. A parasitic insect race - the Wirrn - have taken control and threaten the very future of mankind.
|Run Time||About 1 1/2 Hours|
|Number of Discs||2|
|Character||Fourth Doctor, Tom Baker|
|Release Date||Mar 12, 2013|