Fenris, a ghost that helps bring the Apocolypse, is loose in the city. However, when the EGB's trap him, the Trap gets covered with ice from the ghost, and starts to malfunction. As they race back to the firehouse, the trap starts to open, and Fenris is loose in the basement. A fireball from Fenris, hits the containment unit, and springs the trap door open, setting a few ghosts loose. However, before they ALL escape, Slimer slams into the remaining ghosts, and seals the containment unit from inside. Trapping himself inside the unit in the proccess.. Can the EGB's get him out, while dealing with the escaped Fenris in the proccess?