Where is everybody?

The alarm clock goes off. You wake up and get ready for school, just like every other day. So what's the big deal? Well, what if one morning you suddenly discovered that you were one of the last surviving people on Earth? That's right, everyone else has disappeared. No idea how, no idea why, just...gone--vanished. This has come true for a small group of teenagers who have just awakened to their worst nightmare.

But it gets worse. Someone--or something--is hunting them down.