In November 2015, a series of unprecedented and deadly attacks hits Paris. The anti-terrorist police led by Heloise and her chief commander Fred - face an unprecedented level of pressure: in a race against the clock, they must find the perpetrators of the attacks as quickly as possible before they can strike again, travelling across Europe and beyond in one of the biggest manhunts in history.
François and Noémie run a sawmill in the mountains not far from the Swiss border. François has taken over his family's business, making him the fourth generation. He dreams of having a child. After years of failed fertility assistance, they give up on having a baby of their own and turn to adoption. But then François meets Patricia, new to the neighborhood. They begin a passionate affair. Soon after, Patricia gets pregnant.