Chicago PD Season 4 “Their City” Promo They give everything for their city. Chicago PD Season 4 premieres Wednesday September 21st on NBC. Show More… Comments Related Videos Chicago PD 4×04 Promo “Big Friends Big Enemies” (HD) Chicago PD 4×02 Promo “Made a Wrong Turn” (HD) Chicago Med Season 2 “Spirit of a City” Promo (HD) Chicago PD Season 4 “Watch Your Step” Promo (HD)
