Every night Tim searches the modern Polis. He’s looking for the monster that killed his parents—and eventually he gets a lead. But these creatures aren’t just roaming the city’s night rooftops—they’re planning an invasion! When Tim learns about the threat, he agrees to live at a special school for kids with superpowers. After all, he needs to become stronger and control his power. But what are these terrifying beings looking for in a human megalopolis? And will the teenagers be able to stop the monsters?