Losing the thing he loves the most, Hub is finally forced to confront his greatest sin. He sets out for a last shot at redemption by stopping a demonic force that's been unleashed from Hell.
Hub learns more about his new job working for the devil and encounters his first demon.
The worsening storm overwhelms the ER, forcing Danny to make tough choices. Tom must rise to the occasion when someone close to him is injured.
A flashback sheds light on Mary's past. In the present, a convoy with precious cargo hits a roadblock as the White Rabbit creeps closer to his prey.
Grim discoveries complicate Mary's mission. An exhilarating free fall fuels an epic transformation, forcing Dante to confront his demon side.
Hub tries to turn Cade against Lucky and winds up using him for cover as he hunts another demon.
Maryanne, on a mission to reprimand Hub for hurting Cade, stumbles into the world of demons.
Still reeling from the shock of seeing Brooklynn, Darius and the gang encounter a familiar face who may offer answers — or put the group in more danger.
With the ER at capacity post-storm, Danny struggles to balance a full caseload and the arrival of a new attending — who has a history with Xander.
Tensions flare between Egwene and Rand. Moiraine and Lan come to terms with their destiny.
A charismatic sheriff's deputy sets his sights on Danny. A young patient's demanding parents make things hard for Harper. Sophie faces a moral dilemma.
As the hospital's backup generators run low, Dr. Cruz worries for Vero's safety. Sophie and Camila risk it all to save a patient in danger.
The stage is set for the ultimate showdown as the Rabbit and his army lie in wait for Dante to arrive. But there's more than one hero ready to fight.
Dante and Mary face impossible choices — and an enemy more powerful than the world has ever seen. In the aftermath, Baines puts a bold plan into motion.
A nightclub fire floods the ER with patients. With Danny's career hanging in the balance, Dr. Cruz must make a difficult decision.
Hub Halloran starts out on an earthbound revenge story, but quickly realizes he might be in a supernatural one.
A hometown visit to their difficult father reopens fault lines between Danny and Harper. Tom and Dr. Soriano's day off takes an unexpected turn.
An epic clash of forces puts a prophecy to a test. One of the most legendary battles in the history of mankind impends and the heroes must face their deadliest and mightiest foes yet. How will the monumental story unfold? Who will be victorious in the struggle for the kingdom?