Voight is assigned a new Internal Affairs handler, Stillwell who proves to be suspicious of Voightโs actions. During an investigation involving a gambling ring Voight is forced to work with his former partner from the Gang Unit, Shi. At the same time Halsted remains fixated on Lonnie Rodiger and enlists Jinโs help to gather more information. Meanwhile, Ruzekโs inflated ego leads Olinsky to take him down a peg and offer a great opportunity to Atwater.