The HBO limited series splits its time across Baltimore, inside the task force with Sgt. Wayne Jenkins (Jon Bernthal) and officers including Daniel Hersl (Josh Charles) and Jemell Rayam (Darrell Britt-Gibson), to the FBI agent (Dagmara Domińczyk) hunting them and the attorney at the Civil Rights Division of the Department of Justice (Wunmi Mosaku) trying to figure out where it all went wrong.