Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
This movie did not make the Sight and Sound BFI critics' list of the 50 greatest films of all time. I've seen every film on that list, and I can assure you that this one definitely should have been left off the list. But nobody sane watches a movie like this because it's good. We don't need good acting or a convincing script or great special effects, all we want is a reasonably-believable gigantic monster snake that brutally kills people for no practical reason. But we barely get that. Only hardcore giant snake movie fans will enjoy it, but only because they have to.
35 nations have constructed an international high-security prison for the worst of the worst prisoners called New Alcatraz deep under the ice 20 kilometers north of the south pole where it is 67 degrees below zero in the winter. When drilling down into the ice for some reason that wasn't explained and dropped when it was no longer useful, they opened up a large hollow rock full of nitrogen 9,000 feet under the ice where a 20 million year old gigantic snake has been living allowing it to come up into the prison where it begins to kill everyone. Even sub-zero temperatures and a bunch of guys in snow camo with machine guns don't slow it down. The snake might be one of the worst computer-generated creatures ever created. I say might be because the animation is so bad and the screen is so dark and we never get to see it in full focus. It constantly growls and has fangs and a prehensile tail that has a barb on the end so it can either wrap around someone or just skewer them with the tail. Like most movie monster snakes this one is continually chasing and killing people, but unlike most, it also eats them, so its aggression is not as purposeless as most of the others, and that is probably be the best thing I can say about this dud. Avoid it at all costs.