Close to the Arctic Circle, lie two remote islands. They are only about four kilometres apart, but they are separated by an invisible border known as the "Ice Curtain". Little Diomede is part of the United States. Big Diomede is part of Russia. During the Cold War, the Inupiat tribe living on both islands was torn apart. Now, more than two decades since their last reunion, Frances Sistook Ozenna, a tribal coordinator on Little Diomede, is attempting to reunite her people with their Russian relatives.