It's the start of a new term at Miss Cackle's Academy for Witches & Mildred Hubble is determined not to be the worst witch this year. Everything starts so well. Mildred's class has a new form teacher
- no more Miss Hardbroom for Mildred & her friends! But then the new teacher Miss Granite starts acting fishy; Mildred has a very bad hair day when a hair growth spell goes wrong & she has to put up with know-it-all Ethel Hallow being 'helpful'. To top it all her beloved cat Tabby is having a nervous breakdown & refuses to fly.