When the family ranch encounters financial trouble, Armando's successful younger brother Raul arrives with his new fiancâee, Sonia, to help, but things go awry when Armando falls for Sonia, Raul's business dealings turns out to be shady, and the brothersfind themselves up against Mexico's most feared drug lord.
Armando Alvarez (Will Ferrell) has lived and worked on his father's ranch in Mexico his entire life. As the ranch encounters financial difficulties, Armando's younger brother Raul (Diego Luna) shows up with his new fiancÃƒ©e, Sonia (Genesis Rodriguez). It seems that Raul's success as an international businessman means the ranch's troubles are over as he pledges to settle all debts his father has incurred. But when Armando falls for Sonia, and Raul's business dealings turn out to be less than legit, all hell breaks loose as they find themselves in a war with Mexico's most feared drug lord, the mighty Onza (Gael Garcia Bernal).