Alvin donates money to an animal fund and discovers that they don't have any money. In an attempt to earn some money, the boys decide to resell the cookies that Theodore bought with their money by dressing as Girl Cadets. When Theodore finds a dog, he feeds it all their cookies. His brothers find out and decide to hide the dog from Dave. They try to make money by washing Dave's car, but when this isn't enough, they decide to throw together a backyard circus. Simon later finds the dog belongs to an elderly man so the boys reunite Pretty with her owner.
- "I Enjoy Being a Girl" (modified) originally performed in the musical Flower Drum Song.