The future of Kingdom Hospital changes forever when Dr. Hook and Peter are sent back to the Old Kingdom, where they find the answers to the secrets of the Gates Falls Mills fire and free Mary's trapped spirit.
When Peter Rickman has another seizure, he witnesses the eventual fate of Kingdom Hospital and is able to make a tangible connection to its frightening past; when Steg's guilt in the malpractice incident is revealed, he looks for vengeance.
After suffering seizures, two patients begin to have visions of the living dead haunting the hospital; Dr. Stegman is given a drug that exposes his inner demons.
After the sacrifice of a minister, the details of Mary's death become clear; a maintenance man (Wayne Newton) challenges Steg's ego and prized possession.
A major-league baseball player attempts to take his own life and begins a chain reaction that reverses history for all who inhabit Kingdom Hospital.
A heart transplant patient regrets going to Kingdom Hospital; Hook finds old newspaper clippings detailing the 1869 Gates Falls Mills fire.
Peter manages to warn Dr. Hook and Mrs. Druse that a dark presence is channeling evil through a pyromaniac to harm patients, staff and spiritual allies.
Using Peter's drawings, Mrs. Druse and Hook begin to learn the secrets of Kingdom Hospital's horrifying past; Dr. Traff's prank on Dr. Lona Massingale goes awry.
Mrs. Druse intervenes when a teenager's evil spirit wreaks havoc in the hospital; Dr. Hook forges a new relationship.
Peter channels messages from 9-year-old ghost Mary, while his roommate carries out the evil designs of Mary's nemesis, Paul; dark secrets rise to the surface.
Peter Rickman's homicidal roommate brings forth a terrifying new element of evil at Kingdom Hospital; a ghost uses Peter and a catatonic patient to forge an alliance.
Mrs. Druse recruits Peter to participate in a seance to identify the spirit haunting the elevator shaft; the man responsible for Peter's condition becomes aware of a frightening presence at the hospital.
Spectral forces haunt patients and staff at a hospital built on the site of an 1869 mill fire, which incinerated scores of child laborers; an artist (Jack Coleman) is admitted to the hospital after being run down by a motorist.
El futuro del Hospital Kingdom cambia para siempre cuando el doctor Hook y Peter son enviados al Reino Antiguo, en donde descubren un par de secretos.
Cuando Peter Rickman sufre otro ataque, él atestigua el eventual destino del Hospital Kingdom y es capaz de vincularlo con su pasado aterrador; cuando el problema de negligencia médica de Steg es revelado, él intenta vengarse.
Después de padecer ataques, dos pacientes comienzan a tener visiones de los muertos vivientes que embrujan el hospital; el Dr. Stegman recibe un medicamento que expone sus demonios internos.