Come on Danger (1942)

Ranger Jack Mason is sent to Manzanita to bring in Ann Jordan, head of the Jordan gang, reputed to have murdered a rancher and stolen his herd. Mason helps her out during an ambush and, gaining her confidence, hears her side of the story - that tax collector Ott Ramsey, in cahoots with the law, is illegally increasing taxes on ranches and foreclosing on them, and was responsible for the murder in question. Learning she's telling the truth, Mason tries to put her under protective custody but must change his plans when Ramsey and his gang kidnap her and plan her murder.