After washing ashore in France, Daryl struggles to piece together how he got there and why, as he navigates a fractured, walker-infested landscape to find his way home. During his journey, Daryl has to protect a young boy, Laurent, who is seen as a messiah, while facing new, dangerous walker variants and the "Power of the Living" paramilitary group, as the connections he forms along the way complicate his plan to return home.

Stéphane decides to move to the beautiful mountains of Cantal in order to reconnect with his 8-year-old daughter, Victoria, who has been silent since her mother's disappearance. During a walk in the forest, a shepherd gives Victoria a puppy named "Mystery" who will gradually give her a taste for life. But very quickly, Stéphane discovers that the animal is in reality a wolf… Despite the warnings and the danger of this situation, he cannot bring himself to separate his daughter from this seemingly harmless ball of hair.

Louise de Pileggi, a brilliant assistant district attorney, has always had a complicated relationship with her mother, Judith, whom she hasn’t seen in 15 years. When she is transferred to the small courthouse where Judith works as a court clerk, Louise becomes her mother’s boss. And worse still: they will have to work together on a case that seems trivial at first glance, but which will put their nerves on edge.