With their reputation preceding them after accomplishing an impossible feat in Les profs (2013), the famous teachers of Jules Ferry High School find themselves in the most prestigious high school in the United Kingdom along with layabout, Boulard. Now, by order of Her Majesty Queen Elizabeth II, the extraordinary French tutors embark on a sensitive, top-secret mission to help her teenage granddaughter, Princess Vivienne, become a worthy member of the British monarchy. However, this time, the stakes are even higher. Will the unconventional methods of France's worst teachers work?