Mars, 2059. Bowie Base One.
Last recorded message: "Don't drink the water. Don't even touch it. Not one drop."
Starring David Tennant as The Doctor and guest starring acclaimed British stage and screen actress Lindsay Duncan, The Waters Of Mars is the second Doctor Who special to be screened this year.
Lindsay plays Adelaide – the Doctor's cleverest and most strong-minded companion. She and the Doctor face terror on the Red Planet in one of the scariest adventures yet.
Neighbours, Flying Doctors and Casualty star Peter O'Brien also guest stars as Ed, Adelaide's second-in-command at the base.
The Waters Of Mars is written by Russell T Davies and Phil Ford and is directed by Graeme Harper.