Twelve-year-old Katie is insanely jealous of her best friend, Melody. Turns out Melody is jealous of Katie, too. When they wish for the exact same thing to be in each other's shoes at the exact same moment, their wishes are granted. They ll be redoing the summer, except this time as one another. In this be-careful-what-you-wish-for tale, two best friends learn that the grass is not always greener on the other side.