Thirty years ago, ghost hunters saved New York City from a ghost invasion, but now the city is once again in danger. The former heroes can not become on his defense, but there are other brave people who have devoted their lives to the study of the paranormal phenomena. Abby Yates teams up with Erin Gilbert, perhaps the best expert in quantum physics, and together they assemble a team of new ghost hunters, which takes an excellent engineer Gillian Holtzman, a subway employee Patty Tolan, who knows the city like the back of her hand, and a secretary - a real handsome Kevin. Together they begin the fight against the evil force, terrorizing the metropolis....