The Doctor and Clara find themselves dealing with Cold War tensions when the TARDIS lands aboard a disabled Soviet ballistic submarine. The Doctor isn't the only alien being on board however - while engaged in undersea drilling, Professor Grisenko thought he'd found a mammoth and brought the creature on the boat encased in ice. It isn't a mammoth but an Ice Warrior, who has been lying dormant for 5000 years. He identifies himself as Grand Marshal Skaldak but when he cannot contact others of his kind, he assumes he is the last of his race. He now has every intention of starting a thermonuclear war between the superpowers and destroy Earth. Written by
Did You Know?
In a early draft the character of Prof Grinsenko was a villain. See more
Textual labels throughout the sub are either meaningless combinations of Cyrillic letters or transliterated English words. This is most evident on the depth indicator, where the Cyrillic letters spell the English word "meters" instead of the Russian "metry". See more
I'm always serious, with days off.
Doctor Who Theme
Written by Ron Grainer
Arranged by Murray Gold
Performed by BBC National Orchestra of Wales See more