Ellen Adair

President Meyer travels to Iran, where an American reporter is being detained.

Selina is annoyed by the press' reaction to her running mate's charm.

When NYPD responds to the scene of an active shooter in a nearby hospital, Shaw is shocked at his connection to the suspect; Maroun and Price face a difficult trial when the defendant offers up an insanity plea.

Gaffney gets a surprise visit from a National Accreditation Board of Hospitals representative; Asher and Naomi search for the cause of a young girl's infection; Lenox and Frost work together to save the victim of an accidental shooting.

Halloween chaos takes over the E.D.

Carrie and Franny are living with Maggie's family; Saul and the detained employees are in prison; President Keane's administration is scrutinized.