Duello nel Texas, also known as Gunfight in the Red Sands and Gringo, is a 1963 Italian/Spanish international co-production directed by Ricardo Blasco and Mario Caiano,[1] and produced by Albert Band as his first Spaghetti Western.

Outside of Carterville, Texas, the sheepherding Martinez family has discovered gold on their land.

Manuel, the wayward youngest son boasts about the fact under the influence of alcohol in a saloon.

The next day three masked men ride to the Martinez house, where they murder the father, wound Manuel and steal the gold belonging to the family.

Gringo kills one of the men who attempts to ambush him and gradually discovers that certain people in the town of Carterville want to obtain the land of the Martinez family for themselves.