When a deadly mist engulfs Paris, people find refuge in the upper floors of the buildings. With no information, no electricity and hardly any supplies, Mathieu, Anna and their daughter Sarah try to survive the disaster.
Fred Bartel is the charismatic boss of a trendy Parisian communication agency, Happy Few. After a heated tax audit, he was forced by the administration to relocate overnight his company in La Courneuve. Fred and his team meet Samy, a young suburb who will quickly propose to teach them the rules and practices to adopt in this new environment.
