Between Fighting Men is one of those B westerns that had it gotten produced at a major studio with decent production values and an A list cast this could have been a classic western. At 20th Century Fox for instance I could easily have seen Tyrone Power and Henry Fonda as the two brothers as they were in Jesse James. As it is Ken Maynard and Wallace MacDonald aren't that bad as feuding brothers.
Brothers occasionally will fight and these two have a good natured history of it. But the real fighting in their part of the west is going to happen when the government says that land the cattlemen have been grazing on is open range and anyone can settle and claim it. The sheepmen intend to do just that. Which means range war.
But it means more than that when Ruth Hall and her father Buck Connors move in with their sheep. When the two of them start courting her and forget the range war, others haven't. When Butch Martin kills Connors and he's been hired by Maynard and MacDonald's father Walter Law as a range detective strong arm guy, it all hits the fan.
Between Fighting Men is a pretty good product coming from a Poverty Row studio with little production values. Definitely shows cowboy star Ken Maynard off to his best advantage.