Bastien, a former professional MMA fighter, had his career abruptly end three years ago when he accidentally killed his opponent in a fight. Consumed by guilt, he withdrew from the public eye, trying to bury the past. However, one day the widow of his opponent seeks him out for help - her son Leo is missing in Marseille. Feeling responsible for the boy's father's death, Bastien agrees to find Leo to redeem his guilt. Along the way, he teams up with Kenza, a determined policewoman who is battling the criminal elite of the city. Together, they uncover that Leo witnessed a crime and is now in danger. As they delve deeper into the investigation, they realize they are getting closer to a brutal truth and deadly danger.
