During the Farnborough aeronautical show, a Mirage 2000 disappears in the middle of a demonstration. The French military sends Captains Antoine Marchelli and Sebastien Vallois out on patrol over the North Sea, towards the zone where the Mirage disappeared off the radar screens. The pilots discover the plane concealed by an Airbus A340. The Mirage begins locking into combat position. At the same time, Marchelli and Vallois receive the order to give up the chase without further delay. But it's too late, the Mirage is about to shoot down Vallois; Marchelli shoots it down to protect his crew member. This incident is the starting point of an enormous set-up aimed at hijacking a French fighter plane for terrorist purposes. A set-up whose final act takes place on the 14th of July in the skies above Paris, over the Champs-Elysees, in the presence of the same two pilots, Marchelli and Vallois.