While pursuing a gangbanger, Burgess and Roman come across the body of an eight-year-old boy who was reported missing. Intelligence launches an investigation to find the killer and Antonio and Lindsay question a prime suspect. Meanwhile, Burgess confides in Ruzek about Roman's suspicious behavior and Bunny heads to the Ivory Tower with a statement that could be detrimental to Voight's career.

After surviving a hit against him, Voight is convinced the culprit is a criminal he and Olinksy once put away and is determined to catch him before he injures anyone else. At District, Atwater accidentally spills information about Ruzek's past which unsettles Burgess and Platt assigns Burgess and Roman a high society dognapping case.