I know the world ended on a Friday. It was the last day I saw my children...For Scarlet, raising two daughters alone means fighting for tomorrow is an everyday battle. Nathan, desperately clinging to a dead-end job and a loveless marriage, survives purely for his little girl, Zoe. Miranda's biggest problem is driving her sister home from college with their boyfriends, whilst keeping her new Mini Cooper scratch free. When news comes of a deadly epidemic, panic seeps into homes all over the world and chaos ensues...Knowing that they can't outrun the danger, they all head for shelter and security at the same secluded ranch - Red Hill. When a normal day spins out of control and the world comes crashing to an end.