irst half: For the Olympique de Paris soccer team, this away match scheduled against Caplongue was merely supposed to be one last chore before the end of the professional season. Yet no one could ever have imagined that an unknown rabies-like infection was going to spread like wildfire, turning this small town’s inhabitants into ultra-violent and highly contagious creatures. For Samuel, the former golden boy who is nearing retirement, Idriss, the arrogant wunderkind, Coubert, the team’s depressed coach and Solène, the young ambitious journalist, this will turn into the most important confrontation of their lives. Second half: While the rabid supporters prowl about Caplongue, which is in a state of ruin, another nightmare begins for Sam. Barricaded in the police station with other survivors, he has to face the young Cléo, his grumpy father, and Solène, who hasn't forgotten him this time. Meanwhile, Idriss and Marco, hidden in the stadium, look for a way to escape.

Overview from themoviedb.org