A man searches for the villains who murdered his parents

A section boss for the railroad sets out to catch a gang of thieves who have been stealing ore shipments from his company's trains.

When a woman who belongs to a bootlegging gang asks the gang for help when her father is arrested, they refuse. She quits the gang, but the gang's leader locks her up in a brothel. She escapes and hides in the apartment of a man who turns out to be the chief of the government agents pursuing her gang. Complications ensue.