Greg is a police lieutenant; he must collect informations on eco-activists, infiltrating them for months. Myriam, a young free woman, is fighting to save a forest from the building of a dam. They meet and fall in love on the Zone. A beautiful life, a joy that Greg discovers, despite the risks of being unmasked. For each of them, time is short: soon everything will disappear.
A woman with a metal plate in her head from a childhood car accident embarks on a bizarre journey, bringing her into contact with a firefighter who's reunited with his missing son after 10 years.