Boston has a problem. Children are disappearing off the street and only Null is noticing, because he relies on what he calls his "minnows" to make his meth deliveries in return for care and a future that includes college scholarships. Meanwhile, Boyd is out on loan to regional FBI offices in Chelsea, where she's working with Special Agent and Forensic Accountant Joel Thrawn who exploits her street savvy to "make his bones" as a field...