Denmark, in a not-too-distant future. The rising water levels can no longer be ignored and the country needs to be evacuated. As people disperse in all directions, they must bid farewell to what they love, what they know, and who they are. Slowly but steadily, everything changes. All property becomes worthless, all fortunes shift, and luck favours only a few. Those who can afford it travel to affluent countries while the less well-off depend on government-funded relocation to more challenging destinations. Families, friends, and loved ones are separated. Some will be overcome by hatred and division, while others will nurture love and foster new beginnings. Against this backdrop we meet Laura, a high school student in love for the first time and on the cusp of graduation. When news of the evacuation breaks, the course of Laura and her family's lives are changed forever, and Laura is forced into the impossible dilemma of choosing between the three people she loves the most.

Thomas Vinterbergs første dramaserie er en storslået og intim familiefortælling om afskeden med vores land og alt det, vi kender, og om menneskers ukuelige vilje til at overleve, håbe og elske.

C’est un été en apparence ordinaire au Danemark, quand une catastrophe naturelle fait tout basculer : le pays doit être évacué progressivement après avoir été entièrement inondé. Les habitants sont contraints de quitter ceux qu'ils aiment, de renoncer à ce qu’ils ont toujours connu et de ce fait, à une partie d’eux-mêmes.