A day from hell for new science teacher Sue leads to a shady alliance with a pupil. Elsewhere, Connor leads a protest against Christine's cuts, and George introduces the school to his new Chinese teaching assistant - and wife - Princess Windsor.

Rhiannon sends saucy pictures of herself to Darren and they end up being sent to mobile phones around the school. George finds out Princess is leaving him. And Audrey discovers Lisa and Lenny are trying to scam money out of her.