Two unemployed wranglers are given a gold nugget for helping an old prospector named Huggy Johnson when his wagon breaks down. Alamo Todd Heffridge and his partner Kid Streater unwittingly sell the nugget to an unscrupulous assay agent in the Arizona town of Buckskin. When Huggy is shot dead over a map that pin-points the location of the infamous Lost Dutchman Mine, the two wranglers are accused of the crime and arrested. Can they escape from jail and find the real killers?