The first, and apparently only, surviving film produced by the Colorado Motion Picture Company, Pirates of the Plains is a quite well-made story about two brothers, one a champion rodeo rider, the other a horse thief.

Two explorers follow the trail of an escaped convict who had supposedly found a fortune in gold in a cave in the mountains.

Pursued by a gang of bad hombres, Marty The Monk heads to a Mexican cantina. He is pursued by another villain, but is saved by an exotic dancer who is a big Marty fan. She gives him a private dance but the gang from before shows up and a rather graphic (for it's time) gun fight ensues. Who will be left standing?