New Alcatraz (named Boa on VHS and DVD), is a 2002 American direct-to-video science fiction action horror film. It was directed by Phillip Roth and starred Dean Cain. In the middle of Antarctica, a high maximum-security prison called New Alcatraz has recently become operational. When a mining crew inside the prison accidentally drills into a strange rock formation, a giant, prehistoric boa constrictor is unleashed upon the prison and goes on a killing rampage. It is up to the prison staff, inmates, two paleontologists, and a group of soldiers to hunt down and eliminate the beast.