When 12-year-old Bob Ramsay captures a pair of wild colts on the range, he gives the pinto colt to his twin brother Don. The latter is surly because he didn't get the fiery black colt and, a few nights later, he steals it and runs away. In the passing years Bob becomes a respected sheriff while Don turns outlaw and is known as the notorious "Black Bandit", who dresses in black and rides a black stallion. The day comes when Bob must lead a posse to track down his brother, who repeatedly escapes, and because of his resemblance to the outlaw and with only himself knowing the "Black Banidt" is his exact double and twin brother, , Bob himself is arrested. Bob escapes jail and and sets out to capture Don and clear his name. His pinto horse leads Bob to Don's hideout and, after a fight, Bob overcomes Don and exchanges clothes with his brother and sets out to roundup the rest of the outlaw gang.
—Les Adams <longhorn1939@suddenlink.net>