In a Mars base, the inhabitants are being infected by a mysterious water creature which takes over its victims. The Doctor is thrust into the middle of this catastrophe, knowing a larger one is waiting around the corner.
Cast
David Tennant
The Doctor
Lindsay Duncan
Captain Adelaide Brooke
Peter O'Brien
Ed Gold
Sharon Duncan-Brewster
Maggie Cain
Gemma Chan
Mia Bennett
Aleksandar Mikic
Yuri Kerenski
Michael Goldsmith
Roman Groom
Cosima Shaw
Steffi Ehrlich
Joplin Sibtain
Tarak Ital
Alan Ruscoe
Andy Stone
Lily Bevan
Emily
Max Bollinger
Mikhail
Charles De'Ath
Adelaide's Father
Rachel Fewell
Young Adelaide
Anouska Strahnz
Ulrika Ehrlich
Zofia Strahnz
Lisette Ehrlich
Paul Kasey
Ood Sigma
Recommendations
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Doctor Who: Planet of the Dead
Doctor Who: The Time of the Doctor
Megaboa
Doctor Who: The Snowmen
Doctor Who: The Next Doctor
Stargate SG-1: Children of the Gods
Doctor Who: The Runaway Bride
Doctor Who: Voyage of the Damned
Harrison Bergeron
Titan A.E.
The Omega Man
Contagion
Jekyll & Hyde
The Void
Ben 10: Race Against Time
Logan
Ben 10 / Generator Rex: Heroes United
Justice League: Crisis on Infinite Earths Part One
Resident Evil
Global Meltdown