Reine, a young woman, meets for the first time a cousin of hers, Paul. She falls in love with him but she soon leans that Paul is engaged to Blanche, the beautiful daughter of Reine's uncle.
In an attempt to drive out settlers of the Los Trancos valley, through which the railroad proposes to run a line, railroad representative Clyde Barton conspires with Dirk to cause a range war between the two largest ranchers, Tom Gray and Harvey Allen.
Krajewski, a young bank clerk, is a romantic and dreams of perfect love. One day, he accidentally meets a beautiful girl whom he helps dry her clothes in his apartment after she falls into a puddle while getting off the tram.
Brass Bancroft and his sidekick Gabby Watters are recruited onto the secret service and go undercover to crack a ruthless gang that smuggles illegal aliens.
Homesteaders are moving into the valley settled many years ago by rancher Craig Dolan. He wants to keep them out by legal means but his nephew Bart brings in outlaws to drive them out.
After being criticized by the Citizens' League for his inability to cope with a crime wave, Police Captain Haines orders his men in the Homicide Bureau to clean up all their cases, but without violating the constitutional rights of any suspect.