The school girls make fun of their new classmate, Raghda, for wearing a hat all the time, even in hot weather, but when Raghda reveals the secret to her wearing the hat, her classmates become more sympathetic and understanding. Zainab becomes Raghda's best friend and shares her joys and sufferings, and spends the best times with her and her brother Salem. The three of them go on an interesting balloon ride, enjoying a unique adventure that can never be forgotten.