

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.
Practical Effects
Genuinely impressive cave sets that feel authentically suffocating.
Cinematography
Underwater photography creates genuine disorientation.
Director
Bruce Hunt
Trivia, insights & behind the scenes
Released two months after The Descent (2005), which absolutely demolished it critically—this is the forgotten stepchild of 2005 cave horror.
The winged creature design was allegedly rushed after studio panic that the original design looked too much like The Relic's monster.