Years after the events of Ghostbusters: Frozen Empire, the Ghostbusters face their greatest supernatural threat yet when the ghost of the Unholy Priest opens gateways to countless parallel universes. As realities begin colliding, the Ghostbusters discover that every universe may have its own history, supernatural dangers, and Ghostbusters team.
Behind the chaos is Angora, a powerful dark being determined to control every reality in existence. To accomplish his goal, Angora exploits Xena's Dark God bloodline, using her supernatural inheritance to expand his influence across the multiverse.
For Nadeem Razmaadi, the Firemaster and newest Ghostbuster, the crisis becomes personal as he fights to save Xena, the woman he loves, while helping protect every universe. Refusing to accept that he must sacrifice one to save the other, Nadeem vows to save them both.
As the dimensional gateways spread, the original Ghostbusters join forces with the Ghostbusters of Earth-216 and the Extreme Ghostbusters, visitors from their own separate universe. Together, the teams must combine their experience, technology, and supernatural abilities to stop Angora before he turns the multiverse into his own kingdom.
