You've probably heard stories of Japanese soldiers who, stranded on some remote island in the Pacific, thought the war never ended. But the Lykovs' story is even more outlandish than that. Karp Lykov and his family never even heard of World War II—its beginning or its end. Nothing at all. In fact, they lived in the Siberian taiga without any human contact for four decades—from 1936 to 1978.