The latest Badlands disappearance is a local woman who may still be alive. While Scully pursues the presumed abductor and escaped serial killer known as "Dante," Mulder explores the Hollow Earth - an underground realm of caves and tunnels with no small resemblance to Hell. Will he find the missing woman? Or will Dante reach her first? And what happens if the demons Dante claims haunt him turn out to be real?