The first episode of this series showed so much promise. It was enthralling, different and worked in spite of a few improbable aspects. Sadly, by episode four, I felt the strong sense that anything The Old Man had aspired to be, was, well, getting old. The chemistry between the two main characters started to falter, the story line seemed increasingly ridiculous and the sense of momentum and urgency, so cleverly crafted early on, was on the wane. The anti Russian message is well past its use by date too, adding to the sense that things had gone stale. In summary, what can I say, "wh...