Nick Morgan is a National Park Ranger, husband, father and loves the animals he watches over each day at the Valley of Wisdom. He is mocked by his co-workers about his diet. While he is alone in the park, he witnesses cruelty to animals and snaps. Unable to control himself in the moment, he hurts and sometimes kills the people the same way they hurt and/or kill the animals. His brother, who is a police officer, also mocks Nick's love for animals and suspects he is behind the murders in the park when he sees "AK" carved into some of the deceased hunters chests. He knows that Nick calls Animal Killers "AK" for short. Will Nick get caught or killed? Will his brother turn him in?