Multiple Terrorist acts have taken place all over the world (mainly in the U.S), So the U.S Military wanted to create a creature that would be virtually indestructible. They made the werewolf (not today's Movie werewolf, a more beastly, grotesque version of one), which could only be killed by silver. If they are to touch silver, it burns them. The werewolves being held escape and infect people, lowering the population quickly and killing thousands. 10 years later, a girl named Jessica who had seen one of the wolves (when contained) 10 years ago as a wee is now a young adult, and must evade the wolves and survive in the ruins of what was once home. Money is hard to come by for her and what is left of America. So is silver, the one thing they need to kill the beasts that roam the country. Pick up weapons, silver, and hope to survive in the "Wolf's Den".