A group of girls seek adventure on a caving expedition. Deep inside underground caves they find themselves cut off from the world and off the map. Battling to get back to the surface they realise that they are being hunted by an unknown cannibalistic force. Now they must pull together and fight for their very survival.
- NTSC Region 1
- Unrated
- Anamorphic Widescreen
- DD 5.1 Audio
- Audio Commentary –
1. Neil Marshall – Director, Crew
2. Neil Marshall – Director, Cast - Making of
- Outtakes
- Storyboard-to-Film comparison
- Deleted/Extended Scenes
- Production Interviews – Neil Marshall – Director
- Original Theatrical Trailer
- Trailers
- Interactive Features:
- Interactive Menus
- Scene Selection
- Text/Photo Galleries:
- Biographies – Cast, Crew
- Photo Stills
