Against all odds, Fairbell is excelling in his new role as principal - but the arrival of a buttoned-up guidance counselor jeopardizes the rest of the gang's easy street.

Quinn returns as principal and starts a campaign to tackle the rampant bullying at Smoot - but disturbing the delicate social ecosystem has consequences for everyone.

With the gang in charge of the Homecoming Parade floats, tensions rise and "class" warfare ensues.