Rocky and CeCe decide they're too old to trick-or-treat and elect to have a "Mature-o'ween" with more adult activities, such as knitting and watching tear-jerking movies. They soon realize they're just missing out on fun and candy, and scramble to salvage what's left of their Halloween. Meanwhile, tired of being treated like a little kid, Flynn challenges Ty and Deuce to a scare off in an old abandoned house believed to be haunted by a young spirit.