Klein discovers that Edmund Exley is still trying to prosecute Dudley Smith and begins working with him. When he meets an undercover officer, Johnny Duhamel, Klein is shot up with drugs and kills him in an act caught on film. Klein is arrested by federal agents and becomes a witness, but is given forty-eight hours before he is taken into custody. Klein and Exley discover that Smith is selling heroin exclusively to the black population in the Southside to keep crime in that area "contained". The two track down the Kafesjians' burglar, Wylie Bullock.