 Heisemann, it turns out, has secret ties to an underground Nazi revivalist movement.When Eliot discovers this, he tells his superiors, who order him to continue his relationship with Willie to learn more about Heisemann's operation.The climax of the picture takes place in Berchtesgaden, and the scenes of Heisemann being chased through the rubble were filmed inside the ruins of Hitler's house just before its final demolition by the German government.