Harry Newman is an old man, dying in a London nursing home. When he makes a deathbed confession of 12 separate 'unauthorised killings', Boyd's team is called in.
With Grace recovering from her attack, the team continue on their quest to identify whoever commissioned the murders and to find out what really happened to Frank Sutton.
Max panics after receiving an unexpected email, while Stan finds himself in trouble with the law. And Lucy makes a decision about her love life, but is it the right one?
