As part of a joint U.S.-Mexico task force to stem illegal transport of migrant workers, federal agent Jack Bearnes (George Murphy) and Mexican operative Pablo Rodriguez go undercover--the former as a broker in forged work permits, the latter as a recruited bracero. Their paths lead them to the same corrupt rancher (Howard Da Silva)...and perils that neither may survive. Anthony Mann's gripping, noirish procedural co-stars James Mitchell, Charles McGraw, Arthur Hunnicutt. 95 min.. Standard; Soundtrack: English Dolby Digital mono; Subtitles: English, French, Spanish.