Head of Internal Security, JJA, has been promoted to the post of director to put some order into the Bureau. Meanwhile, Marie-Jeanne has decided to get away from Paris to see how well she'll fair working on the ground in Egypt.

Relentlessly tracked down by the CIA and the DGSE, Malotru is hiding out in Moscow where he is forced to collaborate with the Russian secret services. Back in Paris, the Bureau is in the firing line of JJA, the new Director of Internal Security. Nevertheless the Bureau launches a new, large-scale operation consisting of sending a secret agent to infiltrate Russian hackers in Moscow.

Malotru has been taken hostage by the "Islamic State" and the Bureau faces a dilemma: should they use all their resources to save Malotru, who betrayed them and his country when he became a double agent working for the CIA?