Based on real-life accounts by former French spies, The Bureau tells the story of a man torn between love and loyalty, in a world where a single lie can kill. When French intelligence officer Guillaume "Malotru" Debailly returns to Paris after six years as an undercover agent in Syria, he struggles to reconnect with his daughter, ex-wife, colleagues and even his old self.
After six years undercover in Damascus, agent Malotru returns home to Paris. As he begins to reconnect with real life - family, work & friends - Malotru struggles to forget his mistress Nadia, whom he fell in love with back in Syria.
With Cyclone still missing, the Bureau now has to handle the exfiltration of one of their assets in Algeria, Gherbi. Malotru rekindles his relationship with Nadia, but his guilt and resulting paranoia soon make him question her loyalty
Malotru decides to test Gherbi's loyalty by luring him into a trap. Nadia joins in on a mysterious meeting with other Syrians, but her regular "night-outs" soon arouse the suspicion of a Syrian agent, Nadim.
Kerbouche is finally brought to the DGSE and unveils the truth about Cyclone's life-or-death situation, which requires immediate action from the Bureau.
The DGSE recruits Lefkir's secretary to plant a tracking device on him. In the meantime, devastated by Malotru's revelations, Nadia cannot set out to betray her country and refuses to join the DGSE.
Encouraged by the French government, the DGSE pretends to accept a deal offered by the Algerian DG. But on the side, Mag secretly asks Malotru for a plan B to avoid any foreign interference.
At the DGSE, Sisteron is anxiously waiting for Cyclone's release over the next few days. Malotru takes a few days off the Cyclone operation – now in the hands of the Action Division – and secretly meets up with the CIA.
