The zombie apocalypse has come and gone, the world has ended, and humanity has crumbled. But nobody told the aliens. And it seems that alien brains have some interesting side effects on the ravenous undead. Just ask zombie Li, who "wakes up" after a quick bite. The world is a wasteland, she's a walking corpse, and her "snack" has just melted into a noxious puddle of goo. She's had better days. But she won't go through the rest of her undead life alone. As Li hits the road to figure out what happened, the end of the world brings her strange company, and even stranger enemies. The aliens are coming back, and it's going to take more than a handful of quirky zombies to stop them. She's going to need some serious fire power-like the remnants of the human race. If she can find them.