The film is set in the Northern Mexican region of Sonora, at the beginning of the Twentieth Century, against the background of an ethnic cleansing by the Mexican government. The Yaquis are deported because they slow the works on a railroad down; most of them have already been deported to Southern regions (where they were used as slaves), but small groups are continuing to resist subjugation (*1). The story is about a black deputy sheriff from Arizona, who accidentally becomes involved in their rebellion, when he crosses the border with Mexico to capture a half breed Yaqui Indian, who has robbed a bank and bought one hundred rifles with the loot to arm his people. The black American is very reluctant to join the Yaqui in their fight against the federales (to begin with he never liked Indians), but falls for their fiery red-headed leader, played by no other than Raquel Welch.
Yaqui Humara (Michael Forest) and some soldiers carry M1 Garand rifles, a rather grave anachronism considering the fact the M1 Garand wasn't designed until the late 1920's and production didn't start until 1936, almost 25 years after the film takes place.
Please send regiment of cavalry, or what force you can sapre, with ammuniton and supplies. Have just received telegram from Colonel Morgan, who says he is ready to go immediately, but requires for supplies $10,000 for commssary and $15,000 for quartermaster, 100 rifles, 200 double- barrels, 8,000 rounds buck and ball (caliber 69), 3,000 rounds to fit the rifles, 50 pounds of rifle powder and 200 pounds of lead, and if possible ten days of hard bread and slat. He marchexz with 825 men. I can send him 100 double- barrels, 50 pounds of rifle powder, and the lead. He wants all sent to Rome. Can you supply him!*
I march to- morrow under orders of General Smith to Knoxville with 750 men. Have one company in Knoxville and one en route through Montgomery. WIll need more arms if I go to North Alabama. Would be happy to aid our frinds in Tennessee Valley. A m ready to do so if ordered. In that event will need at once $25,000 to purchase supplies, 100 rifles, and 200 double- barrels, 8,000 rounds buck and ball (caliber 69), 3,000 rounds to fit the rifles, 50 pounds rifle powder, and 200 pounds of lead, to be sent here or to Rome, and autjority tob purchase three 781b155fdc