Following a tip from a regular informant, known as Reeks, the squad focus their sights on career criminal Simon Neary who is expecting a large shipment of guns. DCI Hunt is more than happy to go after Neary given his record, even if he doesn't quite share Alex's passion for wanting to keep guns off the street. They learn that Neary's supplier is a Russian mobster but when Reeks is found with a bullet through the head, Alex tries to convince Neary's lover, Marcus Johnstone, to help them with their investigation. Neary is a very smooth customer indeed and her only way to Marcus is to convince him that Neary doesn't love him and is only using him. Concerned about the ethics of what she is doing, Alex consults her mother.
—garykmcd