After a group of biologists discovers a huge network of unexplored caves in Romania and, believing it to be an undisturbed eco-system that has produced a new species, they hire the best American team of underwater cave explorers in the world. While exploring deeper into the underwater caves, a rockslide blocks their exit, and they soon discover a larger carnivorous creature has added them to its food chain.

• DirectorBruce Hunt
• Release26 August 2005
• Genre
  Action / Adventure
• Duration1h 37m
• Budget$30,000,000
• Revenue$33,296,457
• Rate
  

  5.4
  977 reviews
• Productions

  City Productions, Cineblue Internationale Filmproduktionsgesellschaft, Lakeshore Entertainment, Screen Gems, Cinerenta