Marco wants to perform the Indian epic "The Ramayana" for a school performance, but his friends would rather do "Mouselina." After learning the story of his selection, however, the mouselings change their minds and surprise him by learning the song and choreography.
Angelina and Polly discover sheet music written by their dad while decorating his store for Father's Day. They learn that it's klezmer, a type of music performed at celebrations, so they decide to celebrate Father's Day with klezmer.
Polly desperately wants to become taller, but learns to value her size when Angelina, A.Z., and Alice need someone small to play an important role in their school production of "Goldilocks and the Three Mice."