Chief Boden (Eamonn Walker) is accused of leaving a homeless man to die in a warehouse fire after ordering his men to evacuate the scene, creating negative press and bad feeling within the department. Meanwhile, Lieutenant Severide (Taylor Kinney) helps an elderly woman facing some neighborhood problems. Detective Voight (guest star Jason Beghe) ramps up his intimidation tactics aimed at Casey (Jesse Spencer) in an attempt to discourage him from testifying against his son. Shay (Lauren German) is forced to revisit her heartbreak over her ex-girlfriend Clarice (guest star Shiri Appleby), when she finds herself face-to-face with the ex and her husband during a call. Hermann’s (David Eigenberg) temper flares during a rescue call at a Halloween block party. Monica Raymund, Charlie Barnett and Teri Reeves also star.