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Tim McCoy once again played Department of Justice agent "Lightning Bill" Carson in Code of the Cactus, and once again he infiltrates the outlaws by masquerading as a foreigner, this time a Mexican named Miguel. A gang of very modern rustlers using high-powered trucks and machine guns is terrorizing the local ranchers. Disguised as Miguel, Lightning Bill quickly learns that the rustlers are lead by Blackton (Forrest Taylor), a nasty meatpacking contractor, and with assistance from usual sidekick Magpie (Ben Corbett) and a new acquaintance, range detective Bob Swane (Dave "Tex" O-Brien), he manages to penetrate Blackton's barricade of piled-up trucks. McCoy made eight Westerns for low-budget producer Katzman's Victory Pictures before signing with newcomer PRC.