The Massively Mixed-Up Middle School Mystery When the ultimate prank sends their principal under water, it's up to Everett, Alyssa and Riley to put their super detective skills to the test, catch the perp, and save their school's first dance in 40 years. Details Casts Galleries Posters Title The Massively Mixed-Up Middle School Mystery Release Date 2015-08-01 Runtime 00 Hours 39 Minutes Genres Comedy Mystery TV Movie Production Companies Unknown Production Countries Jenna Ortega... Elena Mendoza... Haley Tju... Alyssa Perry... Adam Hochstetter... Riley King... Garrett Ryan... Everett Tibbles... Brianne Tju... Gaby Perry... Nathaniel J. Potvin... Scottie Kogan... Scarlett Estevez... Young Mendoza... Original Size (1280x720) Original Size (1280x720) Original Size (592x841) Original Size (1536x2304)