The team investigates the murder of a professional informant after he’s found dead outside an abandoned factory in Red Hook. Also, Maggie reconnects with an old colleague and mentor.

As the team works to rescue a 5-year-old kidnapping victim, Scola suspects the boy’s mother isn’t being forthcoming about why her son was targeted. Also, Nina struggles to open up…

Special Agents Maggie Bell and OA Zidan investigate the death of a safety inspector and its possible connection to a leak at a nuclear power plant.