It's love at first sight for Ray when a new American teacher starts, Jacko and his mates start cleaning car windscreens, and Natalie is horrible to everyone.
Ms. Janowitz suggests the idea of a school newspaper, and Nat continues exhibit a changeable personae until it becomes evident that she is just one of a pair of twins.
The windscreen washers accidentally target Mr. Hargreaves car. He tells Mr. Robson that pupils must stay in at lunchtime, and Ray overhears and circulates a bulletin with the news.
Trainers are banned at school after an expensive pair are stolen. The 5th formers debate the "Invidividual" versus the "Group".
Maria and Richard make fake American trainers, Spanner and Techno use the computer to produce the lines they are given to do, and unauthorized photographers appear in the playground.
Mrs. Monroe unwittingly gives plausible excuses for trainers to be worn, Justine tapes a revealing interview with Mr. Hargreaves and Alice and Becky find a secret garden.
While Chrissy goes into an early pregnancy, almost giving birth in the school loos, Ted seems intent on creating a new life for himself in Southampton.
Mr. Hargreaves isn't pleased when the newspaper misquotes him as lifting the trainer ban. The piece about cigarettes being sold to first formers provokes violent revenge against Justine.
Mrs. Keele, Grange Hill's new headmistress, starts. Ted finally goes to see Chrissy and their baby. Jacko sells flowers from the garden to Liam who gives them to Justine.
The clashes between Natasha and Natalie, and the violence in the peace garden finally all get too much for Becky. The feud with St Joseph's School gathers momentum.
Writers' Week causes a bit of a stir, Techno finds out that "LoveByte" isn't quite the girl he was expecting, and Ray kisses Ms. Janowitz.
Justine plays a trick on the Cigarette Gang, and there's a massive confrontation between St. Joseph's and Grange Hill.
A local newspaper reporter steals Justine's unpublished account of the confrontation with St. Joseph's, and Mrs. Keele issues an ultimatum to the school.
After Justine intercepts a postcard for Ted a few home truths are revealed. Ted moves away to Southampton, alone. Diane finds a fox's paw print in the garden. Liam has a confrontation with a rival gang.
Staff and pupils unite to stop the sale of the Peace Garden land.
Ray and the others try to find Liam to stop him joining in the Eagles and Hawks gang fight, but they find he's had an accident en-route, and is lying dead in the road.
Public schoolboys visit Grange Hill, Year Seven find out how environmentally friendly the school is, or rather isn't, and Justine makes a surprise return.
The visiting public schoolboys find that the girls at Grange Hill are a little more than they can handle. Richard finally gets time alone with Natasha.
Richard organizes a collection for Ms. Janowitz, and Chrissy brings her baby to school.
A fashion show and baseball match bring the school year to a close. Ray's jacket becomes Ms. Janowitz's leaving present, and the Cigarette Gang get expelled.