first a grizzly as large a the one in this film would need a large hunting ground but yet seem to be in a fairly small one around a blocked of toxic waste dump and have never be notice by anyone . second be the waste dump it self why so many shot of it when they never bother to say why and be it the reason the bear be so aggressive or seemingly intelligent and be the bear put there to guard the dump and where do the dump come from and why have it not affect the tree and ground water to get notice by ranger and or nearby community a from the rusty barrel it have be there for many year . intelligence on the people and a tire iron be not go to do much against a adult bear and go off alone over and over when a a group they would stand a good chance and not try to make weapon such a spear at nigh they sit around 2 flash light instead of build a large a fire a they can for light to give warning of the bear but also to use a protection not to mention to maybe signal someone that at least they be in a no trespass area to get ranger interested . the cabin seem to be set up a a defensible position but they do not use it or get any of the weapon from it and also who build it when and what happen to them and when and a recent chicken remains be show but the cabin it self look long desert . they trap the bear in the barn but they already see it be get lose but they just walk away with out try to reinforce the trap or kill the bear that escape and kill them leave no one leave alive . alas your left just sit there go what just happen and why do a watch this .