Poppy Wise has mixed feelings about going to school, and her teachers certainly have mixed feelings about her dog, Pete. Pete is an insatiable canine gourmand who loves to eat absolutely everything in sight! When Pete decides to join Poppy in class, everyone knows it is going to be a very interesting day. First, Pete wreaks havoc during a math lesson. Then, he causes absolute chaos in science class when he accidentally swallows the teacher's microscope. Finally, he becomes a colorful star in art class by eating all the crayons! Things take an even wilder turn when Pete gets sent to the principal's office, swallows a whole set of encyclopedias, and suddenly starts speaking. Get ready for a perfectly hilarious school day packed with rambunctious fun, endless silliness, and a dog who literally devours knowledge.