After Liam's funeral Justine sits alone, dressed in black on a bench outside the church... At school, the Year Sevens are given a task to find out where energy is wasted in the school, and where it is being environmentally unfriendly. Techno and Spanner investigate the paper in the loos, but they are intercepted by the Cigarette Gang. Afterwards, they take Mr. Griffiths to task over the timing of the school heating which comes on at 7.00 AM and his inefficient light bulbs. The girls for their part interview the school secretary, who isn't particularly helpful, and they watch her make personal phone calls while they wait for her precious time. Meanwhile, there are some smart boys wandering the school who turn up in the Office. They seem to have been expected, and walk around the school, finding the boys toilets in a grim mess after Grimbo and Mick's gang have left their mark - the toilets filled with paper, the sinks filthy. Richard, secretly observed by Nick, seems to be talking to ...