harlan and michael attempt to perform a pheromone experiment on a dog inside a plastic encasement. if it works, they plan to have a stronger pheromone sprayed into the area to stop the packs. but as they are about to start the experiment, the dog breaks through the plastic amid a nearby pack. meanwhile, the posse is attacked by a pack, killing everyone but jimmy, who flees the scene. but before he gets to his car, he is attacked also, dropping his gun. after suffering severe injuries, he stops the attack by picking up his gun and shooting the dog, but collapses and dies upon reaching his car.