It is early 1942 and Australia is in the midst of war. While working at a Japanese hospital in the pearling port of Broome, Dr Ibaraki is arrested as an enemy alien and sent to Loveday internment camp in a remote corner of South Australia. There, he learns to live among a group of men who are divided by culture and allegiance. As tensions at the isolated camp escalate, the doctor's long-held beliefs are thrown into question and he is forced to confront his dark past: the promise he made in Japan and its devastating consequences.