Bandolero! (1968)

"There are "Westerns" and "Westerns". Every now and then comes a NEW kind of Western. This is "BANDOLERO!"."

Posing as a hangman, Mace Bishop arrives in town with the intention of freeing a gang of outlaws, including his brother, from the gallows. Mace urges his younger brother to give up crime. The sheriff chases the brothers to Mexico. They join forces, however, against a group of Mexican bandits.