Thirteen-year-old Ander Cartwright is an expert on two subjects: fortune cookies and payback.

Especially payback.

When he's not struggling with algebra, Ander is the leader of an anonymous revenge club that operates within the walls of Marina Middle School. Got a beef with a classmate? Email Ander's crew, and if your case is legit, they'll get even on your behalf.

It's not easy to right wrongs while flying under the radar. That's why Ander developed three simple rules design to help keep him and his friends from blowing their cover.

But when Ander spots the opportunity to settle an old score of his own, he ignores the rules, setting off a chain of events that threatens to blow his cover, and it'll take all the butt-kicking, detention-dodging skill the team can muster to keep a lid on their secret.