Max is eating too many cupcakes, and his big sister, Ruby, decides to cure him of his sweet tooth. Ruby reads Max a Greek myth about young Prince Midas who uses magic to turn healthy food into ice-cream sundaes, Popsicles, and birthday cake. But when Midas accidentally changes his family into delicious desserts, he realizes that there can be too much of a good thing. Will Max learn a lesson from Midas and resist eating one more cupcake?