Abbey Grove's new term kicks off with the annual swimming gala and headmaster Mr Fraser decides to pay homage to the fact the UK recently hosted the greatest show on Earth,Splash!, by ending it with their very own synchronised diving competition. Alfie and his class don't usually take part in the gala, but lured by a cash bet with deputy headmistress Miss Pickwell he decides to bribe them with a group trip to a restaurant and enter the event. The first day back is also a chance for Alfie to catch up with his girlfriend Rosie, but he's shocked to find out that he isn't in a relationship with her at all, and even more shocked to find out that she is in a lesbian relationship with a former pupil.