On his way to work, Vincent, in his thirties, picks up a ringing cell phone from the ground and answers it. He hears a woman screaming and a threatening voice saying, “If you're not there by 5 p.m., we'll kill your wife.” Alban, his 45-year-old colleague with a fiery temperament, already sees himself as the hero of the day and urges Vincent to take action.

Vincent and Alban have been kidnapped by Mr. Hermann, the man whose wife was abducted and who is trying to find her. Suspecting the two colleagues of stealing the ransom money, he condemns them to certain death by forcing them to take an empty briefcase to the meeting place set by the kidnappers, dangerous members of an Albanian gang.

After a chase and a shootout at the departmental agency's offices, Vincent and Alban manage to escape with Madame Hermann. But the long-awaited reunion with her husband does not go as planned.

Vincent and Alban begin to grasp the magnitude of the conspiracy they have stumbled upon, but they don't have time to investigate. Victims of blackmail, they have no choice but to retrieve a music box by breaking into the home of Marat Milankovitch, an extremely dangerous Russian oligarch.

Targeted by the DGSE and dragging Marat along with them, Vincent and Alban realize that they are merely pawns in a large-scale scandal. But they were unable to warn Louise, and now they are being hunted by Russian agents who are trying to eliminate Marat.

Vincent and Alban manage to escape their pursuers at the last minute, but Louise is kidnapped and all seems lost. Vincent rushes to try to save her as she is held captive in an abandoned airfield.