Getty Culligan is a typical thirteen-year-old trying to fit in, unlike his little sister Tegan who claims to possess magical powers. Getty will admit Tegan knows some tricks, but he knows there is really nothing magical about her. But when a monster-sized dust devil pops up on their way to school one day and carries Tegan away, Getty begins to understand that something extraordinary is afoot. With the help of his Great-Aunt Esmeralda, Getty discovers that Tegan isn't the only one in the family with magical powers. In a race against time, Getty, along with some helpful friends, must work together to outwit the Monster Dust Devil and save Tegan.