This animal thriller at times verges on becoming a horror film, with gory scenes of mangled heads and torn limbs, but it is intended to be a serious tale of baboons gone berserk. The story takes place in a drought-ridden animal preserve in Kenya where ranger Jack Ringtree (Timothy Bottoms) advises both government officials and Chris Tucker (John Rhys-Davies), the manager of a local mine, that all the people in the region have to be evacuated. Jack is convinced thousands of baboons in the preserve will soon go on a rampage caused by a lack of food and water. As might be expected, the authorities ignore his advice, with the usual slow build-up of menacing hairy creatures arguing for the accuracy of Jack's warnings.