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.
Alongside the usual interesting “making of” documentary with contributions from the original cast, the DVD also has another part of the excellent Dr Forever! series. Looking at Doctor Who merchandising through the years, this instalment focuses on original Doctor Who fiction, with contributions from Russell T Davies and Mark Gatiss among others. There are also the CGI sequences from the original DVD release of The Ark in Space and recently discovered news film footage of Tom Baker meeting children in Northern Ireland.
It’s a genuinely exciting and claustrophobic Doctor Who story, with a great cast and fantastic design (especially the cryogenic chamber). And two men who know a thing or two about Doctor Who - both new series showrunners, Russell T Davies and Steven Moffat - have singled out The Ark in Space as their favourite adventure from the 1963-89 run of Doctor Who.
Doctor Who does Alien (four years before Alien)
Watch a classic clip from The Ark in Space here: