This is the first UNIT BNW story to get lower than a 4 star for me. I think given the threat has been built up for some time, and the phone call reveal, neither particular amazed or wowed me. They were fine enough, but I expected a bit more from all the teasing. The story itself too was a little straight forward in terms of what I have come to expect from this range. Very by the numbers, kinda UNIT TNS style in a way I suppose. Lydia's betrayal came as a huge shock, I really like her and Bambera's dynamic so it'll be interesting now that's shifted considerably. I do hope we hear from her again!