The Lightning Rider

When the California border town of Caliboro appears to be menaced by a bandit known as "The Black Mask," the local padre entrusts the sheriff with the church funds. The culprit, Ramon Gonzales, kills the sheriff during an attempted robbery, but shifts the blame on Deputy Sheriff Philip Morgan, who manages to stop the robbery. Morgan disguises himself as The Black Mask to track down the real villain, but is captured and threatened with lynching by the townspeople.