In a world hit by a wave of mutations transforming humans into animals, François does everything he can to save his wife. As some of the creatures disappear into a nearby forest, he and their son Émile embark on a quest that will change their lives forever.

Arnaud, facing an uncertain future and a dearth of choices in a small French coastal town, meets and falls for the apocalyptic-minded Madeleine, who joins an army boot camp to learn military and survival skills to prepare for the upcoming environmental collapse. Intrigued and excited by Madeleine’s wild ideas, Arnaud signs up for the boot camp himself. They soon realize that the boot camp is harder than they’d imagined, but the experience nonetheless cements them together as the couple continues to explore their young love.