Shannon French, downtrodden and lonely underachiever, wishes that she could be working with anyone but her ex-childhood friend Romney. But they’re both agents with the British Youth Intelligence Service, and they’ve been placed together at an elite boarding school in London.

Their mission? Keep an eye on the school’s newest student, Livya. This new girl is not only a knife-wielding, narcissistic activist, but has also been evading them for years, and this might be their first real shot at getting close to her and figuring out what she’s up to.

When all three of them fall in with the same group of rich, charismatic friends, their respective missions start getting away from them. Yet Livya seemingly letting down her guard and falling for Romney looks like a dream come true for the agents – that is, until Shannon finds out that their relationship is not quite as it seems.

Romney’s secrets are putting the whole school – including their new friends – in much bigger danger than she’d realised, forcing Shannon to choose which is more important: proving herself on her case, or doing the right thing and risking the first family she’s ever really found.