A high security prison is built in the middle of the Antarctic where they keep all the dangerous criminals. During the building process they dig a hole into the ground and release a prehistoric snake that was frozen a long time ago. The computerized (fake looking) snake starts killing all of the people within the prison. A marine team is sent in to investigate and secure the area. When things go very wrong the marines seek help from the prisoners. It then becomes a situation just to get out. The film is a fun action packed story that has been done too many times. Enjoyable low budget action film that never gets old and is great for a laugh.