During WW 2, a Basque shepherd is approached by the underground, who wants him to lead a scientist and his family across the Pyrenees. While being pursued by a sadistic German.

In the beginning of the movie you see a woman getting raped by a man-creature of some sort. The movie takes place years later when the child that was a result of that rape is on the rampage looking for a girl to rape to start the process all over again.