Global warming has reached its peak; the area between the tropics of Cancer and Capriciorn is so hot it can no longer support human or animal life. People are dying or moving north and south to cooler climates, which have closed their borders as they cannot cope with increased populations. Violence is widespread.

James Laffoy,earth scientist, has failed to persuade the powers to take drastic action before it's too late. He retreats to his late father's uninhabited island off the west coast of ireland and, over a number of years, with a small number of like minded people, prepares for the worst.

Can they survive in a world that's closing down rapidly?