The heartbreaking, mystifying and unbelievable stories of loved ones who have disappeared and the families that never give up hope.

The heartbreaking, mystifying and unbelievable stories of loved ones who have disappeared and the families that never give up hope. Some stories remain unresolved; some reveal tragic endings and others have surprisingly upbeat resolutions. All of them are propelled by unpredictable twists and turns.—Toby Padilla