Acting DC Best survives the shooting, but may be paralysed. Reunited with his estranged mother, he decides to return to Manchester. DCI Meadows and CID begin the search for the gunman, and are led to Supt Okaro's old friend Isaac Collins. Sgt Smith and Jonathan Fox investigate Insp Gold's absence and find her passed out in her bathroom. PC Stamp hires an escort to accompany him to PC Harman's birthday party, but she turns out to be a moonlighting PC Johannsen.