When the world was invaded by underground creatures that wanted to wipe out mankind from Earth, the post-apocalyptic survivors called The Day of Reckoning. Fifteen years later, people have the same signs indicating that a new attack is coming and they seek out shelter for protection. What will happen to mankind this time? When the world was invaded by underground creatures that wanted to wipe out mankind from Earth, the post-apocalyptic survivors called The Day of Reckoning. Fifteen years later, people have the same signs indicating that a new attack is coming and they seek out shelter for protection. What will happen to mankind this time? Parental Guide