After two students are caught breaking the rules, an expulsion ignites an escalating prank war with rival gang the Weekday Warriors, as they all try and discover who "the rat" is inside Culver Creek. Miles finds his future at the school at risk and his loyalty to his new friends tested.

Miles spends Thanksgiving with Alaska at Culver Creek, but a trip to the Colonel's home for the holiday - designed to bring everyone together - only leaves the group further apart.