On prize-giving day, a few dunces recall various incidents that marked their school year.

The Marquis Rodolphe de Sombrueil accidentally runs over a working man with his carriage and helps his widow -- unjustly accused of robbery -- to find her missing daughter.

Casti and Trébois, two friends who are workers at the same factory, have developed a common passion for flying. They dream of starting an aviation club. In the meantime they spend all their Sundays restoring an old plane under the supervision of Raf, a former RAF pilot...