I decided to watch this mainly because Nicola Walker is in it; she consistently delivers good performances. While I really enjoyed her work in River and Unforgotten, it was nice to see her in a police-adjacent show playing someone other than a detective—she was excellent as a suspect in another series previously. There’s quite a bit happening throughout this series, so you need to pay attention while watching. One…

The series follows a familiar pattern seen in numerous British television programs, centering its storyline around a conspiracy connected to individuals within security agencies—a plot device used repeatedly. Additionally, certain characters’ personal narratives don't advance the main story; they appear to exist simply to extend the running time. However, it is commendable that this program tackles a genuine i…