Mags desperately wants to fit in with the other children in her school. The only thing that stands in here way is family: a father who died when she was 2, a mother who works the night shift, a younger brother (Mooch) who has has a history of stealing, and a mentally challenged sister (Hannie) who clings to Mags. It doesn't help that the boy down the street despises the family and takes great joy in pointing out all of their flaws. When Hannie comes across a 'magic' unicorn and insists on keeping it, Mags can help but believe there is a little magic in that ratty toy. Wishes don't always turn out the way you expect.