I'm a big fan of the Italian spaghetti western genre as I think there are plenty of above average films made during the era that scream entertainment value. Unfortunately this is one of the lesser entries, a rather predictable and long-winded tale that feels more like an ordinary American oater instead of the stylish violent stories that the Italians usually made.
A pre-Batman Adam West is the hero, the sheriff of a small town desperately trying to keep things together; unfortunately he falls foul of the titular gang and is framed for a crime didn't commit. The rest of the film involves him trying to prove his innocence. The most offensive thing about all this is that West doesn't change his outfit once and he's wearing the ugliest pink shirt you'll ever see.
THE RELENTLESS FOUR is a pretty dull western without much action and a below average script to boot. The storyline seems to drag on endlessly with lots of padding instead of excitement. It's a definite B-movie rather than a film with anything remotely original to say.