It's been seven days since Clementine, Logan, and their allies retreated into hiding on the Surface. Clementine feels almost safe in their company, but she knows it won't last. The rebels may have won one fight against Commander Charlie, but the fight is far from over. He will find a way to fly his Core battleship to the nearby planet, Marden, no matter how many lives are lost in the process. Unless the rebels defeat him first.

The plan is simple: they will infiltrate each sector and weaken his infrastructure from within his ranks. They will convince the underage workers in the camps to join in the uprising. They will hijack ships, enter the Core, and assassinate Charlie. But Charlie has more weapons in his possession than guns and bombs, and he will do whatever it takes to keep the rebels from ruining his plans. With every step, Clementine draws closer to losing Logan and everyone she cares about—and losing control of herself.