Bookmarked Chicago P.D. 4x04 "Big Friends Big Enemies" (Trakt)
A car plows through a crowd outside of a concert venue and is followed by gunfire, sparking fears that it may be terror-related. Burgess spots Atwater's brother where he shouldn't be. The team works to bring peace to the community before more blood is shed.

πŸ“Ί I just watched Chicago P.D. 4×04 "Big Friends Big Enemies" https://trakt.tv/shows/chicago-p-d/seasons/4/episodes/4 #trakt