Cinderella discovers a secret that could shake their world: an evil witch turned the prince into a mouse and replaced him with a look-alike. Cinderella and her friends must save the real prince and help him defeat the evil witch.

When Prince Alex is trapped in the body of a mouse, Ella and her friends set off on a journey to find the magic potion ingredients that can change him back. On a quest that tests fate itself, they discover that friendship is the most potent cure of all.