Third-grader Dessert's love of treats leads to a change in her large family's dinner routine, then an awful mistake, and later a true sacrifice after her teacher, Mrs. Howdy Doody, urges students to march to the beat of their own drums.
Third-grader Dessert, inspired by Mrs. Howdy Doody's lessons about the American Revolution, decides she and her friends should fight back against annoying siblings, but the club she starts only makes matters worse.
Eight-year-old Donahue "Dessert" Schneider is feeling completely ignored and unloved at home, but she is certain that will change when her invention wins the Thomas Edison Contest at school.