"The Spengler family returns to where it all started--the iconic New York City firehouse--to team up with the original Ghostbusters, who've developed a top-secret research lab to take busting ghosts to the next level. But when the discovery of an ancient artifact unleashes an army of ghosts that casts a death chill upon the city, Ghostbusters new and old must join forces to protect their home and save the world from a second Ice Age"--