On the small islands of Kiribati northeast of Australia, the population lives with the threat that their country will disappear. The low level of the islands combined with an ever-rising sea level have caused large parts of the country to be devoured by the sea, and many people have already made the decision to emigrate to neighboring countries. Anote's ark follows two individuals. The country's president, Anote Tong, works to influence international climate policy while exploring methods for his people to stay in their home country for as long as possible. Sermery, a young mother of six, is trying to decide if the family should leave the culture that they know to emigrate to New Zealand.