Justin is given the bumps on his birthday. The third form wants a common room for lunch and breaks. A school trip to some waste ground inspires Penny and Susi to ask if they can go to the proper countryside. Susi has bra troubles. Alan, with Andrew, and witnessed by Susi leaves a fire burning, but a chain of kids put it out using milk churns. Susi throws her bra in the river, but Andrew retrieves it, and there's a mutual agreement between them to keep quiet about what each other has seen.