Border Reprisal

After narrowly escaping serious bodily harm in a train robbery, Wells Fargo courier Marc Charvein makes his way into Mexico to find out whos responsible for a wave of similar robberies and whether the culprit has anything to do with an unidentified individual whos been handing out gold coins to the poor. Is there a modern-day Robin Hood operating along the Mexican border, or is something else going on, something a lot darker?