In 1937 legendary aviator Amelia Earhart disappeared in the Pacific and was never heard from again. Many years later, a couple sailing around the world take refuge on an uncharted island. Although they believe the tiny atoll to be uninhabited, it is actually home to a mysterious woman who has been stranded there for more than forty years. As that woman ponders whether to stay hidden or step back into society, a tempestuous storm threatens to change the course of all their lives.