Katie Carew and her best friend Suzanne are absolutely desperate to see the brand-new blockbuster movie, Tornado. But there is one huge problem: neither of their parents will let them go! While Suzanne is busy complaining loudly about always being treated like her little baby sister, Heather, the magical switch wind suddenly blows. In a flash, Katie accidentally transforms into baby Heather! Being trapped in a crib and wearing a diaper is bad enough, but things get even more complicated when Katie forgets she is supposed to be a baby and actually speaks out loud. Suzanne is completely shocked and suddenly believes her little sister is a brilliant, talking genius! Now Katie is stuck trying to navigate life as a toddler while keeping her true identity a secret. How is she going to explain a talking baby without letting anyone know about her magical powers? Discover how Katie wiggles her way out of this hilarious, pint-sized mess!