It's the kind of case that chills Caitlyn to the bone. Missing person. College student. Beloved daughter of a world leader in biotechnology. She was last seen on a spring break cruise. No witnesses. No motives. Just one possible lead - reports of a stranger who may have lured the young archeology major off the ship and into the jungles of Guatemala. When Caitlyn follows her hunch into the jungle - with the FBI's Jake Carver by her side - the trail takes a surprising turn into the very heart of darkness.