Nightmares don't go away easily - especially when they're in the shape of a vengeful woman hell-bent on killing the man she believes wronged her. That man just happens to be Detective Simms, of the Pinkerton Detective Agency. While investigating a clutch of brutal murders, Simms is dragged into a life-and-death struggle with a bunch of desperadoes, numerous Indians, a gunfighter and a double-crossing U.S. Marshall by the name of Dixon. This will t be the easiest period of his life, r the most peaceful. By the end of it, a lot of people will end up dead. All Simms needs to do is make sure he isn't one of them.