In the year 2057, the North American continent is a totalitarian state run by a vicious leader. An elderly scientist and his sister concoct a plan to change the leader's past and make him a humane man by sending an official to the past.

When a man's sweetheart is murdered in an insurance fraud scam, the man vows to catch the killer and bring him to justice.

An Irish folk tale is told as a young Irish woman living in America implores an Irish cop to find her purse that contains a magical salt shaker. Her father got the shaker from the Old Man of the Stone back in the homeland.

An ancient queen lives for hundreds of years in order to exact revenge for her lover's death. An explorer and the son of his late colleague travel to a remote island to find the ancient goddess who killed the young man's ancestors.

This is the story of how the greatest enemy of train robbers got started. The Pinkerton Detective Agency pursues train robbers in Missouri who killed an innocent brakeman.

A wealthy old woman's home is apparently haunted by the ghost of an Indian that drives away guests and the hired help. In order to avoid losing her status in the upper crust of New York society, she hires an affable private detective to get to the bottom of the matter.

A woman badgers detectives to find her missing husband. A detective decides to investigate on his own time and finds himself attracted to her. Meanwhile, his wife applies some science to the case and makes some startling revelations.

The Russians are developing a secret weapon that will allow them to read and control our thoughts using a satellite thousands of miles away. A reporter investigates.

A wicked man destroys lives and aggravates people on a whim. When he ends up dead, a detective finds that the man made so many enemies that it is hard to know where to start investigating his murder.

Two American cave explorers plan an expedition into a sacred Yucatan cavern to bring out rare artifacts in spite of warnings from the locals not to violate the sacred ground.