 The Doctor(Sylvester McCoy)and Ace(Sophie Aldred)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(Finbar Lynch) 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(Tomek Bork) 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 the Naval bases Commander Millington(Alred Lynch). 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 oriental treasures from the east and a terrible curse along with it. Eventually the Naval base is besieged by Vampiric Haemovores. Supernaturaly, evolved creatures who along with everyone else on the base. Are part of a metaphorical contest. A chess that was once played eighteen centuries ago by the Doctor and a dark entity from the dawn of time called Fenric.