Black Bandit (1938)

"A TWO GUN SHERIFF-TWIN BROTHER OF THE BLACK BANDIT! HIS OWN POSSE YELLING FOR HIS NECK!"

Twin brothers Bob and Don Ramsay are on opposite sides of the law. Bob is the Sheriff and Don is the famous outlaw the Black Bandit. When the Black Bandit strikes, he is seen and his look-alike brother Bob arrested. Refusing to implicate his brother, Bob escapes and heads after Don.