Execution (1968)

Clips, a bounty killer, is after one John Coler, who has fooled him, keeping all of a loot he should have shared with him. He finally catches his prey only to discover that the man is a Coler all right but not the expected one. He is actually the outlaw's honest younger brother Bill, who works in a traveling circus. Will Clip be able to find the stolen gold? Maybe ... but only if a gang of vicious Mexican bandits - to say nothing of Bill's circus troupe - allow him to. Which they do not seem willing to do.