The Bureau

After 6 years undercover in Damascus, agent Malotru returns home to Paris. At the DGSE, Malotru starts training Marina Loiseau, the Bureau's future undercover agent in Iran. Meantime, agent Cyclone goes missing in Algeria after a DUI arrest.

With Cyclone missing, the Bureau now has to handle the exfiltration of another asset in Algeria. Malotru rekindles his relationship with Nadia, but guilt and paranoia question her loyalty. The Bureau is cleaning Marina's record so as not to put her mission at risk.

Malotru decides to test Gherbi's loyalty by luring him into a trap. Nadia joins in on a mysterious meeting, but her regular “night-outs” soon arouse the suspicion of a Syrian agent. In the meantime, Marina successfully infiltrates the Paris Institute of Earth Physics.

At a French-Algerian meeting, Malotru attempts to read the other Algerian officers to find out whether or not they're holding Cyclone in detention. At the Paris Institute of Earth Physics, Reza starts flirting with Marina, who must now find a way to rebuff his advances.

When Sisteron goes after Cyclone in Algiers, another agent known as Pigalle reaches out to Malotru with potential Intel on Cyclone. Concurrently, the DGSI subjects Marina to a tense interrogation, suspecting that she may be working for the Iranian Secret Services.

Wanting to trade Pigalle's intel on Cyclone, Malotru must find a way to uncover the former's true identity and underlying motive. Still on a mission to unmask Malotru, Nadim locates Prune and asks about Paul Lefebvre. Marina must act to keep Jérôme from going to Iran.

Kerbouche finally unveils the truth about Cyclone's life-or-death situation and the Ministry of Foreign Affairs finds out about the secret negotiations. The DGSE sets out to recruit Nadia as a new asset, but Marie-Jeanne is not convinced Nadia will accept the offer.

The DGSE recruits Lefkir's secretary to plant a tracking device on him. Nadia cannot set out to betray her country and refuses to join the DGSE. In Paris, Marina is introduced to Reza's wife Azar. Although smitten by her, she finds Azar is asking far too many questions.

The DGSE pretends to accept a deal offered by the Algerian DG. Mag secretly asks Malotru for a plan B to avoid foreign interference. Malotru is shaken by a message that Nadia is to be tortured. Marina passes her final intelligence test and leaves the country for Iran.

Sisteron is anxiously waiting for Cyclone's release. Malotru takes time off the Cyclone op - now in the hands of the Action Division – and secretly meets up with the CIA. Marie-Jeanne starts to worry when she discovers Marina has been removed from her plane to Iran.