Harry's bulimia reaches crisis point under the stress of bullying and his parent's separation, while the tension increases between Ruby and a heavily pregnant Janeece. Elsewhere, Waterloo Road stages the Interschool Debating Contest, giving Ruth a rare taste of popularity. When Finn discovers that Harry has sabotaged his plans for Jess to sleep over, he exacts revenge with a day of relentless bullying and chances upon Harry being sick in the toilet. Events reach a climax when Harry sinks to the bottom of the pool during a swimming lesson, a cry for help that leads both him and Finn to Karen's office. When Harry is finally forced to reveal his condition, Karen is left questioning her role as a mother.