After discovering the truth about how he lost his memories and Dr. Horizon’s true identity, Hilo goes back to Earth and tries to prevent Razorwark from destroying the world–and everyone in it. Being a hero isn’t easy. But Hilo had no idea it would be this hard. Hilo came to earth because he was running from Razorwark. But he’s done running. Razorwark has come to earth. And the time has come for one final face to face showdown. What happens will decide the fate of the robot world and Hilo’s future. The sacrifice will be great. But with Izzy’s help, Hilo finally knows what he has to do. Because THIS is how all the pieces fit.