Beneath These Streets

Ray goes into the sewer to find out what's causing earthquakes and heat waves in the city. What he finds is an ancient and mysterious pillar that is holding up all of Manhattan Island. Worse, the ghosts have disrupted the axel grease that keeps the pillar turning and holding up the island, in order to get it to break and eventually sink the island into the sea. The Ghostbusters go after Ray in order to save him from the ghosts, but also to protect the pillar from being destroyed.