Calamari, a magician and escape-artist supreme, is being haunted by a ghost that cannot be captured in a Ghost Trap. To make matters worse, Peter has fallen through Calamari's secret cabinet into a strange dimension!

Charles Foster Hearse III, millionaire publisher of the Spooks Illustrated, challenges the Ghostbusters to a friendly competition to find out which one of them deserves to be on the cover of the next issue as "Ghost Hunter of the Year".

When a ghost is caught and trapped in a steelyard by the Ghostbusters, it appears to have been vaporized. However the ghost merges with the steel which is cut and distributed throughout the city…. And now it wants to reassemble itself!

Attending an opera, Egon and a disinterested Peter are shocked when ghostly Valkyries actually appear and create havoc. The Ghostbusters are soon facing the music... and the Valkyries!

A ghostly pirate crew invades New York, intent on reclaiming their lost treasure from a museum. The Ghostbusters not only find themselves outnumbered, but on occasion, outwitted by the pirate ghosts!

In the small town of Tombstone, Arizona, the spirits of Doc Holiday and the Earps materialize, intent on recreating the gunfight at the O.K. Corral. The Ghostbusters may soon get caught in one of the greatest showdowns the west has ever seen.

An Irish police officer in New York, the current head of his clan, is being pursued y a Bog Hound from the old country. The Ghostbusters must stop the Hound with the aid of a four-leaf clover, on St. Patrick's Day!

The Canon of St Theophilus, a book missing from an abbey in Greece since the 1860s, turns up at a New York auction and is accidentally purchased by Peter. Unbeknownst to the Ghostbusters, the sealed volume contains within it the Four Horsemen of the Apocalypse.

A possessed geranium is given to the Ghostbusters as a gift, who in turn present it to Janine. The plant soon grows and begins to overthrow New York, but how do you "bust" a plant?

The ghost of Casey Jones returns and commandeers a locomotive for one last midnight ride. Despite his love for trains, a kidnapped Peter would rather be somewhere else in case history repeats itself and the train crashes!

A paranormal convention comes to town, but when the Ghostbusters are called into action, they are forbidden by the hotel's manager from using their technology for fear of disturbing another group… a convention for dentists!