Ana Mackenzie

An attack by cyber criminals sends the Chastain ER into a tailspin and Kit tries to figure out whether or not to pay the ransom. The Raptor deals with a personal connection to the patients brought into the ER during the attack, leaving them all vulnerable. Meanwhile, Conrad works on balancing life as a new dad and Devon and Leela debate taking the next step in their relationship.

When one of the doctors is found unconscious in an elevator at Chastain, the staff frantically retraces his steps to figure out the cause. Billie is faced with a personal conflict when she comes face-to-face with the secret she has been hiding all these years. Meanwhile, Bell helps Kit make a decision about a new neurosurgeon joining the team at Chastain.

While looking for a distraction on Halloween, Conrad treats a group of witches who send the ER into chaos. Also, Devon treats a patient who thinks he is being haunted by ghosts. Meanwhile, on the way back from his vacation, Bell picks up a hitchhiker who is not what he seems to be.

Kit hires a surgical coach to watch over Bell and Raptor and help them brush up on their skills; Conrad contemplates jumping back into the dating scene; Devon works with an elderly couple.

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.