Sam, a freelance journalist, decides to investigate the growing phenomenon of disaffected youth joining extremist groups. He infiltrates a group of four young people, who have been tasked with the creation of a jihadist cell, and whose mission is to destabilise the city centre of Paris.

The young police man Vincent is the best in his class, and denies to be recruited to the special forces. But when the corrupt Milo manages to get a grip on him, his life is turned into a living nightmare.