The team members board the U.S.S. Edson, a battleship that served in the Vietnam War, in an attempt to free the spirits purported to be trapped on the ship, including a poltergeist.
The crew members return to the Old South Pittsburg Hospital, the location of their very first paranormal investigation, where they hope to reveal the true identity of a menacing shadow figure.
In Tennessee, the team investigates a legendary prison, Brushy Mountain State Penitentiary; the team is taunted and attacked while battling ghosts during an electrical storm.
The team is stranded on a river island and has 48 hours to investigate Fort Delaware, a former civil war POW camp that claimed the lives of one in four prisoners; the boys try to solve the ghostly feud of two civil war generals.
The TWC are on the hunt at Sloss Furnaces in Alabama where the metal foundry claimed the lives of countless workers by burning or gassing them to death.
At a former boys' school and experimental hospital, the TWC try to make contact with the spirit of a murdered girl and rid the basement of a demonic entity.
The TWC return to handle unfinished business at Cannon Memorial Hospital; new intelligence, new gear and an explosive trap have the team set to unlock the hospital's past.