The year is 2027, and the world has reached a tipping point: as the human population continues to dwindle due to the sterility problem, an equally devastating threat rises in the form of "the hybrids", an army of unstoppable lab-made creatures, hell-bent on destroying mankind.
Zoo is set amidst a wave of unhappy animal attacks sweeping across the planet. A young renegade scientist is thrust into a race to unlock the mystery behind this pandemic before time runs out for animals and humans alike.