Monsters are real. Those beasts of legend, the creatures spoke of in stories designed to frighten children, exist in the real world. Now, one has been released from its prison deep within the bowels of the earth, and only one man can stop it. He is known as the monster hunter, a man who knows no limits, who, along with his trusty dog, Magnum, has a long and sordid history of violence and crime, and is currently serving a life sentence in prison where he awaits execution for crimes he claims he didn't commit. With nobody else capable of defeating the creature, the monster hunter is offered a once in a lifetime deal which will see him go free if he can defeat the beast and make the world safe again. The monster hunter will soon learn, however, that the world he remembered is no longer the same, and the deal he has been offered isn't quite as it seems, and the monster he has been tasked to destroy is not the only threat.