Janine talks Egon into visiting her family for dinner, Prompting the Ghostbusters to hire a temporary secretary who on this very day of employment must contend with imps, ghosts, a powerful demon, and Peter's advances!

Through paranormal means, Ray's favorite comic book character, Captain Steel, comes to life, and crosses paths with the Ghostbusters. When the evil Doctor Destructo also comes to life, a hero team-up may be the only way to save the world.

While on vacation in Louisiana, the Ghostbusters find themselves in a town under the influence of mean-spirited jazz-playing ghosts who want to turn the clock back to the 1930s.