A man named Kraskin suddenly appears in the small town of New Falls, Alabama. His arrival is brutal and he falls to the ground nearly passing out. A black dog sees his arrival and comes to investigate. A strange mist sinks into the dog. A few moments later Kraskin loses consciousness. Kraskin begins looking for a scientist/professor that he heard speak on a radio show to tell him important information, and to ask for his help. A large black dog begins to attack farm animals. Sheriff Barry Banes gathers a group of people to hunt the animal, but they are unsuccessful.

Reverend Ezekiel Powell, who is in the process of creating a devoted group of Christians to spread the news of the gospel, spots an unusual light in the woods of his property. He goes to investigate and it changes his life. The dog attacks are getting worse. Now there is a child kidnapping. Sheriff Barry Banes is at a loss, but realizes that he must discover what is going on before things get worse.