Adam Franco is 15 years old when he commits his first murder. He coldly kills the presumed aggressor of his little brother on his way out of the courthouse. 20 years later, he has become an assassin for the French government: an undercover agent who is entrusted with the most secret missions all around the world. He is a methodical and efficient assassin with no second thoughts.
The threat of a dangerous terrorist in France will force his superiors to use Franco on the french territory. In order to stop the imminent attack, Adam will use his real identity and infiltrate into a criminal organization suspected to host the enemy.
However, once in the Mafia organization, an encounter will disturb Adam: Jonathan, 8 years old, the son of the godfather, who reminds him strangely of his dead brother. As he progresses into the mission, the resurgence of his past and the relationship with this child will, for the first time, make him question the meaning of his mission.