 Justine starts the day by earning two detentions - one for each earring... Chrissy gets attacked on the way to school - the third this week, according to one of the teachers: this prompts Miss Booth into offering self-defence classes. Danny gets cracking on the swimming pool mosaic - and he forgets that he is supposed to meet Mr. Tilly about his work experience. Chrissy and Susi give a short fashion exhibition. Determined to pursue his Homework Service idea, Gonch interviews brainy-looking students to try to find someone who would be good at doing French essays. Matthew helps divert the Alsation that stands between Clarke and his paper round, until he falls off his bike. He escapes into the tower block, and when he and Clarke come out, they find the dog gone - but so has his bike!