HALSTEAD IS IN HOT WATER, HIS JOB IN JEOPARDY AS INTELLIGENCE INVESTIGATES THE MURDER OF A DOCTOR WHO HELPED JAIL MANY HEAVY HITTERS – Voight (Jason Beghe) pulls Halstead’s (Jesse Lee Soffer) badge when Lonnie Rodiger is found dead. After a car accident Severide (guest star Taylor Kinney) and Clarke (guest start Peter Mills) discover the torso of Dr. Elliot who has been instrumental in putting away high profile criminals. With Intelligence down one Sumner (guest star Sydney Tamiia Poitier) is given an opportunity to prove herself. Meanwhile during all the investigation Lindsay (Sophia Bush) and Severide share a moment. Jon Seda, Patrick Flueger, Elias Koteas, Marina Squerciati, LaRoyce Hawkins and Archie Kao also star. Amy Morton, Ian Bohen and Robert Ray Wisdom guest star.