Akecheta and the Ghost Nation's origins and how they awakened are revealed.
Dr. Banfield's arrival and attitude causes the ER staff to feel defensive; Gates and the new interns risk their lives saving a terrorist; Neela discovers an unexpected advocate in her fight to get Dr. Dubenko back on the surgery staff.
Abby awakens after the ambulance explosion and rushes to check on Pratt; Sam and Gates rush to the scene; Morris and Neela struggle to keep up with Pratt's injuries.
Dr. Banfield is irritated when Morris takes Chaz under his wing and teaches him risky medical procedures; Neela is unhappy when Dr. Banfield undermines her authority with an intern.
When a former suspect in a rape case ends up dead in another county, Walt and Vic aren't convinced the death is an accident.