The Ghostbusters first encounter Electric Possessor Ghosts possessing a Stacy's Department Store building and its electrical appliances. All of the spirits, a little over a dozen, present were captured and put into the Containment Unit. However, the Ghostbusters didn't know that the paranormal event was bigger than they thought it was until the Containment Unit shut off. The backup generator kicked in, but it was possessed by one of the electric ghosts and then ran away. Knowing the danger of the situation, the Ghostbusters had to resort to old-fashioned methods to keep the Containment Unit working.