Generations after robots conquered Earth, the remaining population survives in the ash of their defeat. Within their walls in Authority City, bots test and develop super soldiers. Rumors of horrible experiments are enough to keep humans in line. At least, most humans.Eighteen-year-old Delilah O'Connor scavenges the ruins with her friend Zane, and Gen, a generation one bot they repaired off the grid. Gen's curiosity gives Delilah hope for the future, but not enough hope to go against the Authority. She finds Zane's dreams of a human resistance pointless, and it's enough to keep their on-and-off relationship mostly off.When they discover two dead guards in a shady trading stop known as the Banks, everything changes. Framed for the murders and pursued by Authority bots, Zane takes Delilah to the only safe space he knows-the headquarters for the Human Coalition. Even there Zane isn't safe. When he's captured, Delilah and Gen must join an unlikely alliance of bot and human to go in to Authority City and save him before he becomes another casualty. Things in Authority City aren't as they seem, they're worse. And Delilah might lose more than her friend within its walls.