Maggie and Negan travel into a post-apocalyptic Manhattan long ago cut off from the mainland. The city is filled with the dead and denizens who have made New York City their own world.

When an ancient artifact awakens a fearsome spirit, the Ghostbusters must unite to save the world from an ice age and an army of the undead.

When a single mom and her two kids arrive in a small town, they begin to discover their connection to the original Ghostbusters and the secret legacy their grandfather left behind.