The big surprise in The Deadly Trackers is Rod Taylor's emergence as one mean and nasty villain here. Although he had played a bad guy early in his career in Hell on Frisco Bay as a contract killer, the public was used to Rod as the civilized fellow bringing a sense of order to a future world in The Time Machine. He's anything, but civilized in The Deadly Trackers.
Richard Harris is a sheriff with some rather strange notions about capture instead of killing in a lawless land. Rod Taylor and his gang rob the bank in Harris's town and kill the bank manager on a whim. Then when Harris tries to capture and use reason with Taylor, Harris's wife and son become dead also.
That gives our sheriff a whole new outlook and he hunts the gang into Mexico where he teams up with a federale played by Al Lettieri who has all the ideas Harris used to have.
This was the farewell performance of Al Lettieri and interesting that he went out as a good guy here. He created a great group of villains in The Godfather, McQ, Mr. Majestyk, and The Getaway. He was a great talent.
Some attention was paid to the fact that Harris is an Irish sheriff and for that matter Rod Taylor is Australian. But America is in fact a nation of immigrants and this should be no stranger than Errol Flynn's emergence as a western star in the heyday of the studio.