Vince Hackett's gang steals a prized victory canon from Mexico and blames the deed on ex-member Jess Wade, who wants to go straight.

Two men on a desperate search to save a woman only one of them could have!

In 1890 Minnesota Christine Powell is the scheming head of the Powell dynasty, the richest mining empire of the era. But the Powell mine deposits are diminishing. The Mesabi range represents a whole new productive area but the rights to mine there are held by a young geological engineer, Kyle Ramlo. The latter reaches an impasse when he needs money to continue his experimentation with open-pit mining and goes to Miss Powell for financing. She displays great interest in both his inventive mining method and in him personally but secretly plots to destroy him and take over his Masabi rights. The gullible Ramlo falls into clutches while the girl he really loves, Cathy Norlund, tries desperately to open his eyes to Christine's scheme.

A cowboy stampedes a Rebel plot with a Union spy posing as a dance-hall girl.

When Apache chief Nanchez is captured by the cavalry, his white squaw and infant son are returned to civilization by Sergeant Hook, but Nanchez escapes custody and attempts to re-claim his son.

Major Lex Kearney, dishonourably discharged from the army for cowardice in battle, volunteers to go undercover to try to prevent raids against shipments of horses desperately needed for the Union war effort. Falling in with the gang of jayhawkers and Confederate soldiers who have been conducting the raids, he gradually gains their trust and is put in a position where he can discover who has been giving them secret information revealing the routes of the horse shipments.