Little Hazel Wells finds it difficult to adjust to her new life with her brother not around; when she tries to run away from home, she finds out her weird neighbors, Cosmo and Wanda, are fairy godparents in disguise.
Hazel has just moved to Dimmadelphia, but she is having trouble adjusting to her new life, due to not having her brother Antony around, and having trouble at school. After finding out that her brother's visit has been delayed due to a storm, she tries to escape from home, but after failing and wishing she could fly, she activates Cosmo and Wanda's magic and gets turned into a fly.