Danny and Baez investigate a case of grand larceny tied tofeuding crime families when the gifts are stolen during a mobwedding. Also, Frank clashes with Mayor Chase when an influxof immigrants arrive in the city; Erin questions whether herdistrict attorney campaign is compromising her day job andEddie enlists Jamie's help to bust a drug dealer responsiblefor fentanyl overdoses in order to comfort a grievinggrandfather.