Charlie and Alex try to navigate their way back as a couple, as Alex faces her first day back as a doctor at Hope Zion Hospital. It is none other than the Chief of Surgery, Dawn Bell, who will act as a "buddy colleague" during her rounds. Dawn comes to realize that she may also have some unresolved issues relating to Alex’s stabbing. Meanwhile, Charlie is visited by one of the happiest spirits he’s ever encountered. While trying to be a Good Samaritan, Joel unexpectedly finds himself in the middle of a hostage situation at a local street clinic. Psychiatrist Dr. Gavin Murphy meets a new colleague at Hope Zion, who is able to help him navigate his feelings – leading to some welcomed “enlightenment.” (thetvdb.com)