"Big Iron" is a short film that is based on the 1960 country western song of the same name by Marty Robbins.
An Arizona Ranger travels to the tiny town of Agua Fria to locate "Texas Red" to bring him what he deserves. He finds a young man who informs him about all the men Red has killed and how he rules the town. The ranger realizes he found who he was looking for and searches for him.