The year is 2084. Hacker Daniel Stone ends up in the “Munkedge” penal colony on the Moon. Around him are hundreds of boys and girls separated by a charged fence. They can see one another but cannot communicate. The colony’s commander holds show executions, forces prisoners to fight, and regularly releases a lethal creature among them. Everything looks like a carefully staged game, but every day here is a fight for survival. And Stone will fight to find out what “Munkedge” really is.