When Ashley Crowther returns to Australia to manage his father's property, he discovers a timeless landscape of kingfishers and ibises; he also meets Jim Saddler, the young woodsman who becomes Ashley's guide to his inheritance. Together they discard the differences of personality and class to enter a partnership of wonder. But when war breaks out in Europe, Jim and Ashley are drawn into obscene enterprise of the trenches, where death falls from the sky and burrows out of the earth.