The second installment of the Mostly Ghostly franchise finds the young magician Max and his ghostly pals Tara and Nicky still searching for the siblings, missing parents while trying to evade Phears, the evil spirit responsible for their disappearance, and his frightful ghoulfriend. As Tara and Nicky give Max a supernatural hand in negotiating middle school, he tries to help them foil Phears' terrifying plot to gain dominion over the world. But can they stop him before their Halloween deadline?