Chile, early 20th century. José Menéndez, a wealthy landowner, hires three horsemen to mark out the perimeter of his extensive property and open a route to the Atlantic Ocean across vast Patagonia. In Chile in 1901, three horseman are paid to protect a vast estate. Accompanying a British soldier and an American mercenary is a mixed-race sniper, who realizes that his true mission is to kill the indigenous population.