In the near future, Tilly, a former army pilot mourning the loss of her father, has been recruited by a British conglomerate to fly a rescue team into war-torn China in search of their missing conservationist and his team. Joined by an eclectic collection of misfits, Tilly and her makeshift crew must brace themselves for a long slog up the forested and danger-filled Yellow River. Can anything prepare them for the genetically-altered horrors and...