A man determined to track down the fabled Arizona gold mine known as The Lost Dutchman has an affair with a married treasure hunter, whose pursuit of the mine has lead her to double-cross her husband.
Beautiful half-breed Pearl Chavez becomes the ward of her dead father's first love and finds herself torn between her sons, one good and the other bad.
An Australian nurse discovers an effective new treatment for infantile paralysis, but experiences great difficulty in convincing doctors of the validity of her claims.
The Navajo Kid goes in search of the villains who murdered his foster-father and stole both ring and watch. The trail leads straight to Canyon City, Texas, and smooth cardsharp Honest John Grogan, who is in possession of both the stolen items. But Grogan has an ironclad alibi for the time of the murder, an alibi confirmed by none other than Sheriff Roy Landon.
Frank Sr. sells his supplies to Hook, but then Hook has the Bannion Boys bushwhack his wagon to get the money back. Frank is murdered, but Junior gets away. He comes back 10 years later to settle the score as the Singing Cowboy. He finds that Hook is still doing his dirty deeds on the unsuspecting people. Along the way, Frank meets the lovely Jen, who came out in the same wagon train 10 years before.
