Oklahoma Raiders is yet one more Betty Burbridge re-working of an original Bennett Cohen story ("Come on Danger,1932", "The Renegade Ranger, 1938", "Come On Danger, 1942" and "Alias Billy the Kid, 1946" among a couple of other uses), usually commissioned by Cohen or Oliver Drake as Associate Producers of whichever version they were involved with. In this one, the hero is an investigator sent by the U.S. Army rather than the Texas Rangers, but the roots show quickly. During the Civil War, Union Army Lieutenant Steve Nolan and Corporal Banjo Bonner are assigned to trail and capture "El Vengador/The Avenger", outlaw leader whose band is stealing herds of wild horses before they can be delivered on contract to the Army. Disguised as an unshaven, seedy cowpuncher, Steve arrives in Benton, Oklahoma territory and witnesses the robbery of the post office by Duggan and Higgins, henchmen of Arnold Drew, who holds the contract to deliver the horses. Steve stops the two robbers but is wounded by ...