During a heat wave, strange clouds start pouring down acid rain, wreaking devastation and panic throughout France. In a world teetering on the edge, a girl and her divorced parents must join forces to confront and try to escape this climate catastrophe.
Pierre Perdrix has been enjoying an enchanted though restless existence since the enigmatic Juliette Webb burst into his life, a stranger who landed in his family's unique world like a meteorite, and who by her presence alone will force this tight-knit microcosm to redefie their boundaries and finally begin to fully live their lives.
Mikado and Laetitia lead an alternative lifestyle aboard a van with their homeschooled children Nuage and Zephir. One day, their van breaks down, forcing them to lead a somewhat 'normal' life over summer.
