Cold War Doctor Who : Season 7 Episode 8
TV-PG BBC One 45m
Aired: April 13th, 2013 @ 6:30 PM EST on BBC One
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!
