Résumé: When Scott Reid and his friend Bryan agree to take his step-sister and her friend camping for the holiday weekend the last thing they expect is to be pursued by two mysterious strangers. How long can they stay one step head of the unshakeable relentless hunters? From the luxurious mansions of Palos Verdes to the run-down motels of the Californian desert, 'Cinco de Mayo' is a grippingly sinister road trip that refuses to slow down, hurtling towards a shocking climax that is as brutal as it is unnerving.