Unable to compete with her friends' fancy clothes and running ability, irrepressible six-year-old Junie B. finds her own way to make the new boy at school like her.
Junie, a spunky, sometimes exasperating, kindergartener, looks forward to winning lots of prizes at the school carnival, but a fruitcake was not exactly what she had in mind.
Through a misunderstanding, Junie B. thinks that her new baby brother is really a baby monkey, and her report of this news creates excitement and trouble in her kindergarten class.