Be careful what you wish for! Lovable but disaster-prone Mildred Hubble is possibly the worst ever trainee witch to darken the doors of Miss Cackle's Academy for Witches. Mildred makes a wish on a shooting star and to her great surprise it comes true! Mildred's wish-come-true is a small dog but how can she keep him a secret from her friends, and especially the formidable Miss Hardbroom? . .