Vaughan's newly-qualified teachers Marco and Guy start work, but it's not long before Guy recognises Carrie Norton and the school comes down heavily on their relationship. Christine's plan to keep Audrey's smothering at bay backfires on her, while Sonya is forced to reveal a very private secret.

With the PTA off for a visit to Havelock High, Vaughan thinks his only worry is Steph Norton. When Havelock are invited back to Waterloo Road, there are erotic novels, exploding science labs and cyber bullying to try and keep from their sight.