David Aron Damane

Stepping Stone. When District 21 goes after a Colombian drug gang following a series of brutal slayings, an asset in the investigation emerges.

Someone shoots an uninvited guest who confronted a popular rapper at a nightclub.

Chin Check. Voight and the team check out a house that has been associated with a series of gangs, people from the past cause Halstead's temper to rise.

Let Her Go. Casey learns that old habits die hard when he is left to deal with Voight.

Thirty Balloons. Atwater and Burgess must keep their new patrol car in mint condition, the Intelligence Unit uncovers drug smuggling, Voight's behavior toward Lindsay drives her right where he doesn't want her, tensions rise between Olinsky and Ruzek.

Different Mistakes. Voight's new Internal Affairs handler proves to be suspicious of his actions, Voight must work with his former partner from the Gang Unit, Halsted enlists Jin to help him gather more information on Lonnie Rodiger, Olinsky takes Ruzek down a peg.