Wounded while on a clandestine operation in Niger, French secret agent Mata loses track of her colleague Antoine, captured on the spot. Upon her return, she volunteers for a counter-espionage mission in the Alps, with the intuition that this new assignment might somehow be connected to her traumatic mission in Africa. Haunted by Antoine’s captivity and convinced that her managers are hiding information from her, Mata embarks on a race against time, outside any official framework... at the risk of losing everything.