Gas-s-s-s

After a chemical accident releases a deadly gas killing everyone over 25, the world is left in the hands of its youth. Sardonic hippie Coel takes off with his girlfriend, Cilla, in search of better areas after inexperienced authorities overrun their hometown. Heading west, the pair is joined by Marissa and Carlos, another couple looking for answers. Encountering freaks and eccentrics, the foursome forges ahead, trying to survive.