Luka is in prison again but this time it's worse. He's in the Block, a place where reality and simulation start to blur. But an audacious breakout reunites Luka and his friends at last. Hiding out in the heart of the destroyed city, Luka realises the scale of their mission to defeat all powerful AI, Happy. How can they stay hidden, let alone win the war? Old friends and new including annoyingly cheerful companion drone, Apple-Moth hold the key to their slim chance of victory...
