Desc: Trigger Fingers: Directed by B. Reeves Eason. With Bob Custer, George Field, Margaret Landis, William Dyer. Sergeant Bob Steele (Bob Custer), of the Texas Rangers, is assigned to put an end to the lawlessness of a gang of outlaws led by a mysterious man known as 'The Black Hawk.' Hoping to infiltrate the gang, he poses as an outlaw named "Lightning" Brady.