Kaley Ronayne

When New York City experiences a major blackout, cops scramble to contain the resulting chaos, and Frank uncovers some unpleasant truths about his department in the aftermath. Also, Jamie and Eddie question the line between work and their relationship, and Danny and Baez race to question the subject of a murder investigation before she gets tipped off by her ex-boyfriend.

McCall is hired by an online group of true-crime enthusiasts to find the anonymous stalker of an unsuspecting NYC woman when the criminal claims he will murder her in eight hours.

The death of Judge Tommy Wells' (guest star John Pankow) daughter puts Intelligence on the track of a pill mill spreading into the suburbs of Chicago and the doctor enabling it. Meanwhile, Voight (Jason Beghe) discovers who's been leaking information from the 21st.

When a lost child is brought into the ER with physical signs of abuse, Conrad and Cade try to get to the bottom of what happened to her. While out shopping, Devon and Leela encounter a woman who is having trouble breathing, and when she arrives at the hospital, Devon takes it upon himself to make sure she feels comfortable with the staff. Meanwhile, Bell eyes an open seat on the State Medical Board and Billie decides it‚ is time to confront her past.

When the first day of Kit's experimental Flight Go team program sends Conrad out into the field, he builds a new relationship with a fellow doctor along for the ride. Devon works with Trevor for the first time on a patient with a mysterious fever, the cause of which can't be found. Meanwhile, Bell is hiding a secret from the whole staff and they are starting to become suspicious.