The day from hell for new science teacher, Sue Spark, leads to a shady alliance with a student. George introduces the school to his new Mandarin teaching assistant, and wife, Princess Windsor, who is immediately popular with some of his class. Elsewhere, the pupils revolt against Christine’s cuts.
Full of nervous excitement about teaching at Waterloo Road, Sue Spark’s first day quickly descends into chaos as she fails to keep her classes focused and becomes the easy target for their jokes. With little support from fiancé Simon, who is determined to keep their relationship secret, Sue loses control and finds herself locked in the storeroom cupboard as the unsupervised class mess up her Science experiment and set off the fire alarm.
Determined to avoid Christine finding out about his relationship with Sue, Simon suggests Waterloo Road might not be the school for her after all. Sensing that it’s make or break time for both her job and her relationship, Sue makes a dodgy deal with Barry Barry.
Elsewhere, the pupils are angry about the closure of the Breakfast Club and the cancellation of school trips due to budget cuts. When Connor leads the pupils on a walk-out in protest, Christine has no choice but to threaten her own son and the rest of the class with exclusion.
Meanwhile, George introduces his new Mandarin teaching assistant, and wife, Princess who seems immediately popular with some of the pupils; the Brown twins continue their vendetta against Audrey and Nikki offers to continue Kacey’s boxing training.