Rowan (James Marsden) returns to his small mountain town after being released from jail. He gets involved in a minor skirmish with a woman and her pimp and is arrested by his brother, who is the sheriff (Thomas Jane of PUNISHER). Of course, the brother isn't too thrilled to see him. The sheriff is in charge of a program that tracks all the local Grizzlies, though there is a group of poachers who do something terrible, which pisses off one huge bear. The ursine not only kills them but starts going after the loggers. When the sheriff's deaf wife (Piper Perabo of THE CAVE) goes missing, he goes searching for her along with his brother.
I found the story and characters a bit contrived, but the cinematography and the special effects are great. For the most part they use a real Grizzy (Bart the Bear), but CGI is used for many of the killing scenes. It's good CGI, not like the pitiful crap you see on the Syfy Channel "monster of the week" movie. Billy Bob Thornton also shows up as a hired hunter who is tasked with killing the rampaging grizzy. He's a little too confident and pays the price. Overall, I recommend it, primarily because it's refreshing to have a plausible killer animal movie.