Kady, Ezra, Hanna and Nick managed to escape from Heimdall Station. They are now gathered on the Mao ship where 2,000 refugees are crowded. Nerves are on edge because the BeiTech threat is still there. In addition, they no longer have any means of communicating with the outside world, food is lacking, and soon, oxygen. The only option is to return to Kerenza. But months after the invasion, who knows what awaits them there? To make matters worse, a mutiny breaks out aboard the Mao... while on land, Asha, Kady's cousin, tries as best she can to organize the Resistance...