I hope this movie was better in the big theatre in 3D as it was really awful watching it at home. It was so very predictable. A group of cave spelunkers caught underground as a huge storm rages overhead knocking out communications. The cave floods, of course, and they are forced to find another way out. It's a premise that been done before, over and over, but, not, of course, with James Cameron's involvement. I thought, after Titanic and Avatar, that this movie would have great potential but I was really disappointed. Some of the death scenes were especially gory and I would not recommend it for a younger audience. I would never watch it again and would suggest not wasting your money.