Goosebumps: Haunted Halloween

In the small town of Wardenclyffe on Halloween Night, two boys named Sonny (Jeremy Ray Taylor) and Sam (Caleel Harris) find a manuscript in an abandoned house that was previously owned by R. L. Stine (Jack Black) called "Haunted Halloween." When they open it, they release Slappy (Avery Lee Jones) who plans to create the Halloween Apocalypse with the help of his Halloween monster allies. Now, Sonny and Sam, alongside Sonny's sister, Sarah (Madison Iseman) and Stine himself, must work to thwart Slappy's plot before all is lost.