When the world ended it was not the sound of bombs or gunfire that people remembered. It was not the words of politicians or martyrs. The only thing people remembered was the screaming. Because after civilization ended and the ruin's of mankind's greatest feats were left to rot all anyone ever did was scream. His wife murdered in front of him, his son taken, Samuel Clark walks the ruins of civilization on a never ending quest to save the only person he has left in the world. And he will stop at nothing to save him.