After the excitement of the fall, all Cammie Morgan wants is peaceful semester at school. But that's easier said than done when you’re a CIA legacy and go to the premier school in the world...for spies.
Despite Cammie's best intentions, trouble crops up quickly. Cammie, Bex, and Liz learn that the Gallagher Academy is hosting guests from another spy school -- a school that is known to the world as the Ethan Frome Academy--a secret spy school for boys. After her fiasco with Josh last fall, Cammie isn't sure she's ready for daily encounters with boy spies – especially after she meets Zach -- an incorrigibe cutie who everyone thinks is just perfect.
Cammie is right to be worried about their new guests. Soon after the boys’ arrival, she's blamed for a series of security breaches that leave the school's top-secret status at risk. And the perfectly crushable Zach is her prime suspect.
The Gallagher Girls will need to use all their skills to investigate the Frome Boys. Even though they're confident about their guy-spying (as if they haven't done it before!), the playing field is level this time, and the stakes for Cammie’s heart—and her beloved school— are higher than ever.