Arnulfo Rubio has an unusual occupation: drive trucks filled with weapons from the US to Mexico drug cartels. Because of this occupation, Arnulfo is considered a gangster. It has an American partner for his age in charge of procuring weapons. Arnulfo seems innocent enough not to draw the attention of customs officials but not smart enough to not be noticed by American agent Hank Harris starts on his trail. In an attempt to arrest him Arnulfo, Harris is robbed and taken priznonier of Rubio. But when Rubio realizes that the “gift” is not appreciated by his bosses, befriends Harris.