Dwayne clashes with a new pupil, whose arrival causes fireworks. As Dwayne continues to rebel, Joe and Mike question their future. Meanwhile, Kim's rocked by a blast from the past.
A revelation by Kelly Jo causes huge ructions between Nicky and Debs. Meanwhile, an increasingly infatuated Amy pursues a new crush.
Preston and Kai give the school something to talk about. Meanwhile, the poetry slam gets off to a rocky start, and Donte is left red-faced.
Shola's behaviour causes a panic, and Val suspects that she's hiding something from them. Meanwhile, Kelly Jo's first day out of the BU doesn't get off to the best start.
Kim rallies the troops when a last-minute Ofsted inspection is sprung on the team. Elsewhere, a knife crime initiative gets underway.
Desperate times force Nicky to consider the unthinkable. Meanwhile, Preston and Myles challenge each other - with devastating consequences.
It's the debut of Radio Waterloo Road, and as Danny uses the launch to rehabilitate himself, Myles has other ideas in mind - with explosive ramifications for the entire school.