Arthur has a loose tooth, but he is the only one in his class that has not lost any of his baby teeth yet. He tries to pull it out to get Francine to stop teasing him. Arthur learns that people lose their baby teeth at different ages and tells Francine, only for her to accidentally hit him with a ball and knock out his loose tooth. D.W. wants earrings because her friend Emily has them. D.W.'s mother takes her shopping for earrings, and while at the superstore, they run into Muffy's father, who needs to speak with D.W.'s mother. Impatient, D.W. wanders off and gets lost in the store. While trying to find her way back to her mother, she runs into Emily and sees her earrings have turned her ears green. Upon returning to her mother, D.W. changes her mind.