The Descent (2005)
Videos: Trailers, Teasers, Featurettes
After a tragic accident, six friends reunite for a caving expedition. Their adventure soon goes horribly wrong when a collapse traps them deep underground and they find themselves pursued by bloodthirsty creatures. As their friendships deteriorate, they find themselves in a desperate struggle to survive the creatures and each other.
The Descent - watch online: streaming, buy or rent
You can buy "The Descent" on Blockbuster as download or rent it on Blockbuster online.