8-th episode of 7-th season "Doctor Who"

What "Doctor Who" 8-th episode about

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!

Episode number: 8

Episode name: "Cold War"

Episode release date: 13 april 2013 at 18:15

Status: aired