An apartment fire linked to a case of rape and attempted murdercalls for members of the CPD to team with the Special VictimsUnit, which had a similar unresolved case that has eluded themfor more than 10 years. This prompts Sgt. Benson to come infrom New York to assist with the investigation in which she isall too familiar. Meanwhile, doubts among the squad towardsone of their own causes Severide to lay down the law and Dawsonputs her life on the line during a call.
