1) The story is about a French boy named Franz who attends his last French lesson, as the German language will now be taught in French schools after Germany took over parts of France.
2) During this last lesson, Franz realizes the importance of the French language and develops an appreciation for his French teacher, M. Hamel, despite previously disliking him.
3) M. Hamel gives an emotional speech expressing his patriotism for France and the French language, urging the students to preserve their mother tongue which will help maintain their freedom and identity.