“Franco Nero's third and last western of 1966, after the groundbreaking DJANGO and MASSACRE TIME. After these genre classics he jetted off to America to shoot the musical CAMELOT, of all things. Thankfully his time in America was not overextended; as such, TEXAS ADIOS is the last of Nero's first wave of westerns.
Hard-nosed sheriff Burt Sullivan throws in his job and travels south in search of the man who killed his father many years prior. All he knows is the man's general whereabouts, and his name: Cisco Delgado. As a taciturn loner, it’s no surprise Sullivan travels solo -- but he’s soon accompanied by his young brother Jim, who’s equally determined to find their father's killer and join in the search for revenge.” (Spaghetti Western Database)