The annoying, 12-year-old child of Mason Thornesmith wants to purchase Rex from Robbie; Hollywood Arts is plagued by a masked flour thrower.

Cast: Victoria Justice, Leon Thomas III, Matt Bennett, Elizabeth Gillies, Ariana Grande, Avan Jogia, Daniella Monet, Michael Eric Reid, Brian Avery, Jarrod Bailey, Gary D. Bierend, Valerie Hinkle, Cole Jensen, Eric Lange, Jill Matson-Sachoff