 The first day at Grange Hill for class N1 - Fay, Annette, Zammo, Jonah, Gripper and Roland. Roly gets off to a bad start on his first day, encountering Gripper Stebson. Jonah s stink bomb causes an unexpectedly early end to Miss Mooney s class. Gripper s bullying of Jonah and Zammo is short-lived - relieved by the appearance of Tucker and Alan. Roly is hounded from pillar to post by different pupils and teachers and goes home in desperation. He is caught on his return by Mr. Baxter, and Miss Mooney takes him to the headmistress, but he escapes into the toilets. No-one can persuade him to leave the locked cubicle, but Jonah has an idea involving his last stink bomb and the open window...