Created by best-selling author Michael Crichton, this series centers on the medical personnel in the emergency room of a Chicago county hospital. ER tracks the inner workings of County General Hospital, a Level One Trauma Center where heroic doctors and nurses are faced with life-and-death decisions on a daily basis. In its fifth season, third-year med student, Lucy Knight joins the team in the ER and kindles a relationship with Dr. Carter, Dr. Corday starts her career over as an intern, Dr. Green watches helplessly as his family is torn apart, Dr. Ross leaves the ER for a new job and the whole time the ER is being run by an imposter!