Octave Bossuet

Yvonne is a police detective in a town on the French Riviera and the young widow of police chief Santi, a local hero. One day, she learns that her husband was in fact a crooked cop.

Ten-year-old orphan boy Sebastian lives with his faithful mountain dog Belle in a secluded alpine village with his grandfather, César. He receives word that his aunt Angelina's plane has crashed and he decides to search for her.

Young Nicolas lives a childhood full of joy and learning in between camaraderie, arguments, fights, punishments, pranks and games.

In the final chapter of the trilogy, Sebastien will try anything to protect Belle from her previous owner.