Howard and Bayliss both attempt to give up smoking, which makes Felton and Pembleton fear their partners' edginess could endanger their own safety. The four nearly miss a murder suspect during a stakeout because they are consumed by a discussion about smoking. Meanwhile, Giardello uncovers a secret construction job ongoing within the police department building, which the detectives were not alerted about. Giardello is furious that it may be hazardous to his squad, and he threatens to go to the media if his superiors do not implement safeguards. Bolander and Munch investigate the death of a 14-year-old boy who has been beaten with a baseball bat. They eventually learn he was killed by a teenage gang leader (Joe Fersedi) who loved the victim like a brother, but beat him as part of an initiation. Bolander is deeply disturbed by the teen's cold casualness in discussing the murder.