Corrected entry: The idea of using the Ultima machine to translate the Viking inscriptions (expressed by both Judson and Millington) makes no sense. Translating a language has nothing in common with deciphering an encrypted message, and a computer would be of no help at all in "decoding" a message in an unknown language.
Corrected entry: The reason for the presence of Russian soldiers in this story, is that they have invaded the Naval base to steal the ULTIMA code breaking machine. However, it is not explained how they propose to get it back to Russia in their little rubber dinghy. The ULTIMA machine fills a whole room, and weighs several tons...it is not something that you can just pick up and carry away. Also, in 1943 weren't the Russians on 'our side'?
Corrected entry: Thanks to a strong wind, as Ace is at the top of the ladder, we see her underpants. Notice that they are black. When she gets to the bottom of the ladder, a Haemovore grabs her around the waist, catching his claw in her skirt. Not only do we get a long look at her suspenders and knickers for a second time, but we can see that they are now white.
Corrected entry: The baby, Audrey, is revealed in a plot twist in episode 4 to be Ace's mother. However the baby in this story was, in fact, the son of the landlord and landlady of The Bush Hotel on Shepherd's Bush Green, a few minutes' walk from the Doctor Who office and frequently visited by the production team. Despite advances in 'test tube baby' technology, no male child has yet given birth, and thereby become someone's mother...