Series: Special

Original Air date: November 15, 2009

Number Doctor: 10th

Companion(s): Lindsay Duncan as Adelaide Brooke

Writer(s):   Russell T Davies and Phil Ford

Director(s):  Graeme Harper

Guest Stars:
Peter O’Brien as Ed Gold
Aleksander Mikic as Yuri Kerenski
Gemma Chan as Mia Bennett
Sharon Duncan Brewster asMaggie Cain
Chook Sibtain as Tarak Ital
Alan Ruscoe as Andy Stone
Cosima Shaw as Steffi Ehrlich
Michael Goldsmith as Roman Groom
Lily Bevan as Emily
Max Bollinger as Mikhail
Charlie De’Ath as Adelaide’s father
Rachel Fewell as Young Adelaide
Anouska Strahnz as Ulrika Ehrlich
Zofia Strahnz as Lisette Ehrlich
Paul Kasey as Ood Sigma

Synopsis: The Doctor arrives on Mars in the year 2059 and joins the first human Earth colony led by Adelaide Brooke. The day he arrives is also the day history records the entire settlement destroyed in an unknown cataclysm with all members of the settlement being killed. Everyone soon realizes that colonists are being infected by some unknown agent and are being transformed into zombie-like creatures. For reasons that are eventually explained, The Doctor is not prepared to save them and tells Brooke that she has to die. He quite torn by this decision and eventually chooses another path, one that will have other repercussions for him in the future.

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