Hemmingway is given twenty-four hours to come up with the evidence to prove that Dr. Wilder is guilty of paedophilia, and working on an instinct that it may not be the first time he has committed such an offence, manages to find a link to another abuse victim. When she discovers that Wilder is still in contact with the boy, a raid on the boy's house uncovers a bedroom full of recording equipment and pornographic material. Having secured the result she was looking for, Hemmingway decides to accept a sergeant's post with the Youth Offending Team. Meanwhile, Hunter sends Nixon and Turner on a wild-goose chase, but the case turns out to be much juicier than he first thought.