In the summer of 1914 a young Englishwoman, Vivian Rose Spencer, joins an archaeological dig in Turkey, fulfilling a long-held dream. Working alongside Germans and Turks, she falls in love with archaeologist Tahsin Bey and joins him in his quest to find an ancient silver circlet. But the outbreak of war in Europe brings her idyllic summer to a sudden end, and her new friends become her nation's enemies.