A prolific MMA fighter, Bastien’s (Gane) final match ends when he accidentally lands a fatal blow on his opponent, Enzo. The moment is witnessed by Enzo’s wife, Emma (Azoulay), and their son, Léo (Paquin). Since then, Bastien’s called it quits on his MMA career, instead becoming a recluse who works in a salt mine. Meanwhile, young Léo’s struggle with grief has taken him down a dark path. So when he goes missing, Emma reluctantly brings Bastien back into the fold to help find him. Bastien’s determination leads him to combine forces with police chief Kenza (Belaïdi), who’s determined to find justice after Marseilles’ most violent gang murdered her brother.