Summer vacation was fun, but now Franklin can't wait to get back to class. Finally, the first day of school arrives and Mr. Owl's students get a big surprise! A mysterious substitute teacher named Miss Koala has replaced Mr. Owl, and nobody knows when he'll be back. Miss Koala sure has a different way of doing things! Franklin resists the changes at first, but soon he and the whole class discover interesting things about Miss Koala, and the kids try things they've never done before. Join Franklin and his friends, as they find out just how much fun a little change can be.