There's a new girl at Spy School who is as good, maybe even better, than the great Erica Hale. Erica, obviously, is not happy about her arrival, whereas Ben is thrilled. Audrey isn't just as good of a spy as Erica, she is pretty, smart and even better, friendly. But things aren't always what they seem. Erica and Audrey have a secret, but can Ben figure it out before it's too late?