 Second Former Brian thinks their new teacher is speaking double dutch - but he is half right - he is Mr. Van Der Groot from the Netherlands. Chrissy and Ted have spent a lot of the summer together, and they are reluctant to go back. The school is freezing cold - but the caretaker can t yet put the heating on. Mrs. McClusky insists that Mr. Griffiths starts it up. The Fourth Form find that their new art teacher is a Mrs. Farrington - they wonder if Miss Booth was sacked. Then "Miss Booth" walks in... She is furious with the Deputy Head to find that he s assumed that she will take her new married name, when she wants to retain her old moniker. Mr. Hargreaves has a cunning plan to pay for the extra heating bill that seems likely to be incurred - putting up adverts around the school. Calley s finally due to hear the results of all the tests that have been made following the scratch she incurred from a monkey that may have had the HIV virus. Tegs thinks his dad is about to uproot the household to Germany. Nick and Richard con Barry Timpson into buying a piece of rock which is supposed to be from the Berlin Wall. As Mr. Griffiths turns on the heating, and water starts coursing through the badly maintained system, Alice and Becky, staying warm in a secret hidey hole, knock over a plank, and a ball-cock is released, starting a flood. Alice and Becky get Julie to be the watch while they do something in secret in the loos - when Julie goes to look, she finds they have disappeared. Mrs. Monroe finds that her Shakespeare lines of it "always raining" has materialized into fact - water is dripping through the ceiling! The ceiling bulges, and the class make a hasty retreat to the door. At that moment, Mr. Hargreaves makes an entry, investigates the effect, and gets swamped by the resulting deluge of his ill-advised prod into the plasterwork. The school is evacuated, and when Alice and Becky emerge to blend in with the others, they are astonished to find an empty building.