Kim rolls out a fresh initiative that causes fireworks for staff and pupils alike, and two worlds collide when Tonya forms an unlikely bond with new boy Schuey.
Preston has a disastrous first day back at school, and Amy's mentoring scheme gets off to a rocky start. As Amy battles to keep the peace, no-one can escape Preston's line of fire.
Shola's new obsession sends shockwaves through the school, with devastating consequences for Joe and Mike.
It's a big day for Kelly Jo as she presents her work to the whole school as well as trying to work out who she is and where she is going. Libby proves to be a thorn in her side.
Amy comes head-to-head with Schuey, but her actions cause uproar. Meanwhile, Kelly Jo has some earth-shattering news for Dean.
Kelly Jo makes a momentous decision, and whilst most of the teachers are away on an inset day, Libby leads the pack as the teens run riot in school.
Tonya is forced to take drastic action after a scandalous discovery, and Preston takes the law into his own hands.
Donte is rocked by the arrival of a ghost from his past that threatens life as he knows it. Meanwhile, Kim and Nicky are faced with a tricky situation.