As term starts, Jacko, Lee and Stewart practise their window cleaning skills. Mr. Robson, acting Deputy Head with Mr. Hargreaves away on a course, struggles with his new responsibilities, and a rather vociferous school secretary. Chrissy, now very visibly pregnant, gets ready for school with a newly invigorated Justine, fresh from her Sweden trip. On the way to school, Justine meets up with her new boyfriend, Liam, while Chrissy is bullied as she walks through an underpass. The bully's attention is distracted by the appearance of Liam, a St. Joseph boy. While Jacko's gang practise on the school windows, the caretaker advises Mr. Robson how hopeless the cleaners have been. When Mr. Griffiths shows the supposedly dirty windows, they have mysteriously become sparkling clean. As the fifth formers prepare for registration, Ray doesn't impress Maria and Matthew with his talk of becoming a millionaire. He acts out his fantasy, until an American voice tells him to get his feet of the table - ...