The school is in mourning after the fatal car crash that killed one pupil and left another, Holly, in a coma. Everyone blames guilt-plagued Donte and Chlo for the death of the student, whose sister, Yasmin, wants revenge. She calls upon Waterloo Road's biggest bully, Hadleigh, to make sure Donte pays. Meanwhile, Izzie is reeling after Tom kisses her at his and Lorna's wedding reception, not daring to give in to her true feelings for him. Also, a battle of wills develops between Andrew and Kim, who are polar opposites in terms of their backgrounds and teaching methods. But could there be a flicker of attraction beneath their banter? Also, Steph acquires vouchers for a dinner for two - with Jack on her menu!