The Doctor and Ace arrive at a Naval base on the cost of Northumerland towards the end of World War II. The Time lord and his young companion pretend to be from the war office. The purpose of which is that the Doctor wishes to meet the wheelchair bound Dr. Judson who's work at breaking German Cyphers is very important to the war effort. This is achieved through the use of the Ultima machine. An invention of the crippled genius's. Unknown however to the Doctor, Ace and Judson. A platoon of Russian soldiers lead by Captain Sorin have secretly arrived on the coast of Northumberland. Their goal: To steal the Ultima Machine. But unknown to the Doctor. The theft of the Ultima Machine has been partly devised by Commander Millington. The bases supreme commanding officer. A ruthless, military man who is unnaturally obsessed with Norse Mythology. For centuries ago a Viking ship moored on the very shores, next to where the base stands. Carrying with it an evil curse. The Time Lord soon realize ... Written by
Did You Know?
Doctor Judson, according to interviews with the scriptwriter Ian Briggs was based on pioneer computer scientist Alan Turing, who was working on the Engima codes during the Second World War. See more
The Doctor states that they are in 1943, but the Russian soldiers are equipped with semi-automatic SKS rifles, which were not developed until 1944, and did not go into testing until 1945 in Germany. The SKS was finally adopted by the Russian army in 1949. In 1943, Russian soldiers were commonly equipped with the Mosin-Nagant 1891/30 bolt-action rifle, or possibly its M44 carbine variant, which was being field tested in 1943. See more
The Seventh Doctor
We need to get that flask.
We can release Captain Sorin to help us. I could distract the guard.
The Seventh Doctor
Professor, I'm not a little girl.