A French intelligence series following a senior DGSE operative who, after spending years deep undercover in Syria under an assumed identity, struggles to readjust to his real life in Paris whilst remaining entangled in the world of espionage. His emotional attachment to the cover identity he inhabited begins to blur the line between the man he truly is and the legend he created. The series explores the psychological toll of clandestine work on both the agent and those around him, including his colleagues and family.