The world-leading countries sneakily aligned on opening a top-secret and maximally secured prison in Antarctica, reserved for the worst of the worst kind of criminals, like terrorists, government hackers, and fallen dictators. Construction and drilling works are still in progress, although the facility is already in use, and the workers drill through a hallow rock and awaken a gigantesque prehistoric snake.
Well, you know, these things happen...
Luckily, there's former TV-Superman Dean Cain as a useless paleontologist who gives brilliant advise, like: "Don't shoot the gas pipes" (but the soldiers continue to ignore this) and "Let's release the prisoners because they know more about escaping...".
It's a terrible film, but - in its defense - can anyone name one 'giant snake' horror effort that is actually good? No, of course not. Even the far more budgeted efforts, like "Anaconda" and "Python" are worthless. If you're looking for adequate snake horror, stick to the "normal sized" slithery serpents, like "Venom", "Mamba", "Fangs", "Jennifer", "Rattlers", "Curse II: the Bite", "Sssssss", or "Stanley". The best way to enjoy "Boa" is as a so-called "send in the military cannon fodder" flick. These are horror/Sci-Fi movies dealing with random military men being sent into a top-secret and geographically remote government research facility or underground lab to eliminate creatures much stronger and slimier than them. The CGI effects are terrible, the wardens and (especially) the prisoners are hopeless stereotypes, and finale is downright ridiculous - although it does predate "Snakes on a Plane" by a handful of years.
