Mannion trails a killer targeting interracial couples, one of whom is a black councilman married to a white woman. Back at the office, Ella finds evidence that implies an officer up for a commendation could be an arsonist. In the meantime, Nancy arrests her father for soliciting a prostitute and Temple helps a junkie kick his drug habit.
 

The mayor blames Mannion for riots in the streets when the chief refuses to fire an officer accused of police brutality. In other events, a friend and informant of Temple's is injured during a drug deal and Ella's husband gives Mannion some alarming news.