In this pilot film to the "Hawaii Five-0" television series, special law officer Steve McGarrett tracks down Red Chinese operatives and their spy ring in Honolulu.

A young daughter of poor farmers is forced by her mother to ditch her young boyfriend in order to marry an old rich neighbor but the girl rebels by becoming the town's harlot.

A man who is arrested for rape swears it wasn't him but somebody who looks just like him, but the victim insists it was him.

Fur-trapper Shawn Garrett gets out of a horse-stealing charge in a small, frontier town by agreeing to buy the horse with a gold nugget. This nugget attracts the attention of a man named McCracken who, with his gang, secretly follows Garrett across the desert in the hope of finding the source of his gold. Garrett joins up with his partner, Jim Rainbolt, and together they manage to hold off McCracken's gang long enough to hide their gold before seeking refuge in the hacienda of a landowner named Gondora. Gondora soon finds out about the gold, however, and Rainbolt and Garrett now find themselves in a fight to save their gold and their lives as well.