The story of the game takes place in a Mexican border where you and your buddy stop over to have a drink. The bar is filled with people so you tend to hang out. When you order some beer the bartender won’t respond so you got angry and yelled at the bar tender. That is when you notice that all of those guys are zombies.
Next thing is that you’re pal is driving to escape the town and your job is to make sure that you reach the edge of the town. Kill as many zombies so you make some money to repair your truck and buy some upgrades for your truck and guns.