Tex Granger

Tex Granger 1948 is a Columbia movie serial featuring the title character as a masked cowboy referred to as The Midnight Rider of the Plains in the serials subtitle. It was based on a character from the comic Calling All Boys while the plot was taken from The Last Frontier 1926, which was itself based on the novel of the same name by Courtney Ryley Cooper. Tex Granger was the 36th of the 57 serials released by Columbia.

Source: Wikipedia