Callum Israel and the crew of the Kapital face their greatest threat yet: Arkady, Israel's former colleague bent on revenge. When the Kapital is bombed in port, Callum and Mag head into the dangerous streets of post-Crash Europe to confront Arkady. But what they ultimately discover may lead them to their long lost ship The Massive! Meanwhile, Mary reappears in the Sahara desert, guarding a convoy of fresh water, holding a secret that might unravel Callum for good. The Massive begins its most powerful chapter yet as Brian Wood, Garry Brown, and Daniel Zezelj unravel the ongoing mystery of Mary and set the stage for the final act, when the cause of the Crash is revealed.