The country is flooding. Every day the sea claims another kilometre of land. The prime minister holds a daily press conference. Scientists try to find an explanation, without success. Sheep drown in the fields, weighed down by their waterlogged fleeces. The museums are emptied of their valuable works. Some people stay. Most leave. Once the evacuation is complete, and the rest of the world is already moving on, a climate activist, a young poet and an oceanographer voyage across the new sea. They are drawn back into the heart of a changed nation, seeking what they have lost in the deluge.