Set in the fictional town of Dimmsdale, California, a 10-year-old boy named Timmy Turner is neglected by his parents and tortured by his babysitter Vicky. One day, he is granted two fairy godparents, Cosmo and Wanda, who grant his every wish to improve his miserable life. However, these wishes are guaranteed to inadvertently cause a series of technical problems that Timmy must fix. In the beginning of the series, Timmy's babysitter Vicky was the main antagonist. As the series progressed, more villains were included; for example, his teacher, Mr. Crocker, firmly believes in fairy godparents and has been searching for them a very long time, suspecting that Timmy has fairy godparents. He is dangerous to Timmy because, according to Da Rules, a large rulebook that defines what children can and cannot wish for and how fairy godparents must behave, no one else can know about his fairy godparents and they will be taken away if this happens (although they do not remember, Cosmo and Wanda once used to be Crocker's fairy godparents, as this rule does not apply to people who currently have their own or once had fairy godparents).