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.

Venturing into a crumbling city, a determined mother and an infamous survivor form an alliance to save her kidnapped son from a ruthless enemy.

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.