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The Doctor and Clara land on a damaged Russian submarine in 1983 as it spirals out of control into the ocean depths. An alien creature is loose on board, having escaped from a block of Arctic ice. With tempers flaring and a cargo of nuclear weapons on board, it’s not just the crew but the whole of humanity at stake!
The Doctor and Clara land on a damaged Russian submarine in 1983 as it spirals out of control into the ocean depths. An alien creature is loose on board, having escaped from a block of Arctic ice. With tempers flaring and a cargo of nuclear weapons on board, it’s not just the crew but the whole of humanity at stake!
Guest stars
James Norton
Onegin
Tobias Menzies
Lieutenant Stepashin
Liam Cunningham
Captain Zhukov
David Warner
Professor Grisenko
Josh O'Connor
Piotr
Charlie Anson
Belevich
Spencer Wilding
Skaldak
Nicholas Briggs
Skaldak (voice)
Crew
Douglas Mackinnon
Director
Mark Gatiss
Writer