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3.7
(174 ratings)Rating Distribution
5
25 (14%)
4
96 (55%)
3
49 (28%)
2
1 (1%)
1
0 (0%)
Overview
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.
Director
Graeme Harper
Production
BBC Cymru Wales
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
