He left, and he never came back; That's what Zylina told herself after the one she called brother, Rory, left the Spy Academy they were raised into when she was 10 and he was 16. Now Zylina is 18, and thinks Rory has forgotten about her, but that changes when he comes back to the Academy and takes her away from it. With Rory, Zylina is told the truth about the Academy, and that it kidnaps babies to train into becoming dangerous spies. Now they have a mission; save the kids that were on the most recent list of targets.