A story about mythical underground people from the ancient days who will stop at nothing and kill anyone in their path, these human-like, big beasts are stealthy killing machines that keep attacking humans. The people of Arizona and Texas have had enough, and they want revenge on the underground people. They want them gone and will do all they can to destroy them and stop their people from dying or going missing. But the underground people aren't the only problem; human betrayal becomes the new problem.