As negotiations begin between the DGSE and Daech, via Nadia, Malotru sees a glimmer of hope: one of his jailers is a mole of the Russian secret services and can help. Duflot tries to help Marina overcome her trauma.
The FSB agent likely to help Malotru is wounded in battle, and Malotru loses hope. Marina is approached by Philippe, a man who claims to belong to the DGSE. He wants to recruit her on behalf of Mossad.
Cochise, a high-ranking DAESH general, is ready to defect. The Russian mole returns with new orders from the FSB: let Malotru rot in his cell. Philippe begins to train Marina and asks her to speak at a conference in Baku.
In Baku, Marina is caught up in paranoia, which complicates her mission. During an interview under high tension, Duflot meets Cochise and negotiates his defection, on condition that Malotru be released.
The Bureau is pulling out all the stops to try and locate Malotru. Nadia and Prune are both called upon to help, but Malotru - always careful and professional to the extreme - has covered his tracks.