Ellen Adair

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.

Flashbacks reveal Bull's attempt to get a new trial for a wrongly convicted prisoner that inspired him to work in trial science 12 years earlier.

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.

Bull and the team worry about jury bias when Bull mounts a murder trial defense for a Black Lives Matter activist.

Halloween chaos takes over the E.D. Hannah helps a pregnant woman with an autistic son. Charles clashes with nurse Jackie on a psych case.

President Meyer travels to Iran, where an American reporter is being detained; Dan is wooed by a lobbyist; Doyle stands in for the president at an event; Kent's polling may cause trouble for Selina.