Young film buff Erin is a huge fan of horror flicks; lucky for her, her dad owns a studio that makes them. When the studio opens a new monster ride, Erin and her pal Marty get to be the first to test it. A fun adventure, however, soon turns into a monstrous nightmare when the ghouls on board turn out to be real in this installment of the popular kids' horror series based on the novels of R.L. Stine.