Moses is one of the thousands of Mexican immigrants who want to reach the United States to have a better life. It only separates a piece of narrow earth, of a few km, but with a very extreme climate.
That piece of land is a very hot desert, so that Moses goes into it along with several companions, in search of a new life. What he does not count on is having to fight for his life because of a madman.
This insane is Sam, who is one of the altruistic vigilantes of the border. In reality, Sam is a criminal who takes advantage of the immigration problem to unleash his criminal instincts.
It is dedicated to the hunting of immigrants like Moses, who will resist more than usual, so that in the end their encounter ends in a fight in which one is the prey and the other the hunter, although at any time the Roles can be reversed.