Caillou needs a follow-up visit to the doctor for an earache. He is afraid to go in as the last visit frightened him. But his mother encourages him and the doctor assures him it won't hurt this time. Caillou examines a doll's ear first and thinks it's fun. Then the doctor looks in his. He's on the mend and onto a good thing. When he gets home he shines a flashlight in everyone's ear including Grandma who's snoozing in the armchair!