Gareth Edwards directs this ultra-low-budget indie sci-fi film. Six years ago, a NASA probe holding samples of alien life crashed over Central America on its return journey to Earth. Soon after, evidence of a new life form appeared and half of Mexico has been quarantined ever since, having being designated an 'infected zone'. Now, cynical American press photographer Andrew Kaulder (Scoot McNairy), who has entered the territory in the hope of capturing the 'monsters' on camera, finds himself escorting his boss's daughter Samantha Wynden (Whitney Able) to safety across the US border after she is injured in a monster attack.