A high-speed train becomes the star of the film as it rushes from Chicago to Hoover Dam to transport an iron lung to a needy patient.

A respected war correspondent is found murdered, with three bullets--from three different guns--in him. Three different men are arrested, convicted and sentenced to death for the murder, but only one can be the actual killer. A criminologist sets out to find who is really guilty.

A psychiatrist's patient, a nutty heiress, travels west to find gold in her grandfather's abandoned mine. The psychiatrist, unable to talk her out of it, decides to follow her out there.

Although Vivian Revere is seemingly the most successful of a trio of reunited schoolmates, she throws it away by descending into a life of debauchery and drugs.