 Robyn persuades Mary to show her where she lives - it is a caravan and Mary is a gypsy. They are followed by Julie, who spreads the news round the school. The Polish lady, "Mrs. S", earns a little of Graham s trust, getting him to admit the locket was bought in a junk shop, and Graham explains that the man who looks after him used to be his mother s partner. She gives him some computer games, but he pretends he stole them when he speaks to Frank. The boys and girls of Year Ten are competing to show they can run the Tuck Shop. The girls seem to be ahead in the game, using Home Economics to bake some demonstration food. They are sabotaged by Andy and Dennis who spice up their fruit drink and steal their recipe book - but it s Mr Mackenzie who suffers when he takes an experimental taster of their concoction. The girls learn that Mr. Brisley has a spare fridge freezer, and arrange to acquire it for the tuck shop. They easily beat the boys vague account of how they will run the tuck shop, and Justine hands over the reins of the enterprise to the girls. Mary finds herself an outcast, and blames Robyn, who protests innocence. She approaches Jodie in the new Tuck Shop about playing football - Jodie is happy for Mary to play, and leaves her temporarily in charge of the shop. When she returns, with Lucy, the money box is opened, and the float is found to be absent. Sensing accusative eyes looking at her, Mary flies into a rage, pushing a younger girl, and tearing down the tuck shop poster... After she has gone, Justine turns up with the cash which hadn t been put in the money box yet. Mrs. Keele reprimands Mary, and asks her to wait outside. When Mrs. Monroe goes to talk to her, she s gone. Mary sits outside her caravan, crying....