Gringo joyrides across the border into Mexico, where all is not as it seems for mild-mannered American businessman Harold Soyinka (David Oyelowo). Crossing the line from citizen to criminal, Harold tangles with duplicitous business partners, Mexican drug lords, international mercenaries, and the DEA. As he attempts to survive in one of the most dangerous places on earth, the question lingers: is this ordinary man in way over his head, or is he two steps ahead?