The stage is set for big performances and lots of fun! When Ms. Mimi loses her voice, her class finds ways to communicate through music. After a musical mishap, AZ doesn't miss a beat and discovers another way to keep tempo. Gracie learns an important lesson about finding inspiration, and Angelina and Polly set the stage for a perfect celebration for their dad! Come along as the mouselings let their creativity shine and get on with the show!