Birch, the local sheriff, along with lawyer Pullen, murders a man and one of his sons. The surviving son (Murphy) vows revenge and goes after the pair with the help of gunfighter Duryea. Cabot, the sheriff's niece, is engaged to marry Pullen, but after the climactic shootout, she has the usual change of heart, ending up with Murphy. Though the film is routine fare, its direction and camerawork improve the formula material noticeably. There are some unusual plot twists as well, which add to the film's interest. The ensemble, led by the macho Murphy, does a fine job. All of these elements, along with the fine use of Technicolor, make RIDE CLEAR OF DIABLO a better than average B western.