Danielle Noble (played by Carla Ortiz) and her team of expert cave divers led by an ambitious american archaeologist (Steve Wilcox), undertake an expedition in search of the lost Mayan Library, without imagining they will instead find the hidden gates of hell known as Xib'alb'a.

A scientist, Dr Hollander, takes his niece Miranda to Mexico in an attempt to reverse the effects of the alien DNA he used to create her. However the treatment goes horribly wrong, and sets Miranda on a killing spree as she sets out to find a mate.