William Pike

Justice Department agent Quentin Locke must investigate a powerful cartel protected by a robot (here referred to as "The Automation")and using a gas weapon "The Madagascar Madness." (imdb)

When beautiful Salomy Jane resists the romantic advances of a young ruffian, she is rescued by Jack Dart, who has his own additional reasons for tangling with the man. Jack fights the ruffian and kills him. He escapes with the law on his trail, for it is (wrongly) presumed that he is also the man who held up the stagecoach. Salomy Jane comes to his rescue when he is captured and about to be lynched. (imdb)