One of the DGSE's (The General Directorate for External Security) top agents, Guillaume Debailly aka 'Malotru1, returns after a six-year undercover mission in Damascus. Upon his arrival in Paris, Malotru's department gets hit with a major crisis: 'Cyclone', a secret agent operating in Algeria has completely vanished off the grid. Duflot, Director of the Bureau, assigns recently inducted psychiatrist, Dr. Balmes, to observe and draw up surveillance reports on each member of the force. In the midst of locating Cyclone, The Bureau must also maintain a close eye on promising new recruit, Marina. Once her training is complete, she will be sent on a difficult mission to infiltrate Iranian nuclear activity. But before being sent off, she has to complete a full test of her abilities: eluding pursuers, resisting violent interrogation tactics, remaining undercover at all times, and of course mastering manipulation. Malotru manages to make progress on the Cyclone case, but the many lives he has led as an undercover agent are now beginning to haunt him. When he discovers Nadia, the love of his life is in Paris, he breaks the Bureau's number one rule and secretly continues to live by his previous legend in order to reunite with her. For love, he is willing to risk it all... not only for himself, but the entire Bureau.