- Directors: Susanna White
- Producers: Tim Bevan, Eric Fellner, Lindsay Doran
- Writers: Emma Thompson, Christianna Brand
- Genres: Comedy, Family, Fantasy
- Actors: Emma Thompson, Maggie Gyllenhaal, Ralph Fiennes, Rhys Ifans, and Maggie Smith
In England during the Second World War, teenager Norman (Asa Butterfield), a younger boy and a girl live at a farm with their mother, while the father is away as a soldier. Two spoiled cousins, a boy and a girl, are evacuated from the city and join them. At first the two groups quarrel.
Nanny McPhee (Emma Thompson) arrives, telling the mother that she has been assigned to this family, and that the mother does not have to pay her a dime. With discipline and magic, she transforms the family’s lives. In the process, she herself transforms from ugly to beautiful, just like in the first film.
The farm is owned half by the mother, half by her mean brother-in-law. The brother wants to buy the mother’s share, and uses mean tricks to force her to do so. First he releases her pigs, which would be a serious financial loss, but Nanny McPhee and the children find and return them. Then he gives them a forged Killed in action notice regarding the father. Norman feels in his bones that his father is still alive, and after going to London with Nanny McPhee and one of the cousins it turns out that the father is “only” missing in action. Meanwhile the other children manage to delay the mother signing the contract.
The father returns safely. Nanny McPhee leaves, as she is no longer needed.