Lucy tries to make the first day of term an interesting one. Tigger decides to let Alison know how he feels about her. Alex decides to make a fresh start.
After skate boards are banned at the school a rebel skater emerges to try and get the ban lifted. Everyone wonders who the mysterious skater is.
The pupils vote to decide who will be head boy and girl for the year. Tanya and Togger are hoping they will win but Lucy wants the position of head girl as well.
When Chloe and Andrea try to get out of a cross country run they find themselves getting into trouble.
Footballer Dwayne Miller visits the school to promote his new cookery book. Mr McDonnell hopes the ex pupil will get a good reception.
Alison is upset when her friends forget her birthday. Alex and Trigger then try to give her a day to remember.
The school gets ready to show year six pupils around the place. Theo and Laxo aren't looking forward to having them there.
Andrea and Chloe fear that their past is going to catch up with them. A pensioner is mistaken for somebody else at the school.
Bryn and Ducket are shown 'Extra Terrestrial Hunt' by Kathy. It is an Internet site looking for life away from the planet Earth. Bryn thinks that a conspiracy might be happening on the site.
When Jake finds out that Jenny is planning on taking her dog back to the dog's home because she is fed up with looking after it he isn't impressed.
Mr McDonnell attempts to create more team work amongst the students with his Building Bridges project. With Lucy and Rachel arguing things don't go quite as planned.
The school ends up full of animals after Lucy isn't happy about her father's career choice. Tigger thinks he has found the woman of his dreams.
An inter-schools music competition gets the pupils auditioning.
Tigger is excited by the prospect of winning tickets to see his favourite group performing. Togger has something important to ask Tanya.
As part of Grange Hill's Citizenship Day Chloe Tigger, and Andrea are auctioned off as slaves. Tigger isn't happy when he ends up as a slave to some year seven pupils.
Sammy isn't happy when she thinks that Ed and Alex could be fighting over her. Not everything is as it seems though. When Andrea takes part in a spelling competition, Chloe isn't pleased.
Alex makes Chloe attend bully court after she is caught bullying Serena.Theo and Laxo have a competition to see who can keep quiet the longest.
The pupils play War Games. When Jenny defends a younger pupil, Lucy isn't sure that the girl is being completely honest. Sammy is concerned whether Alex really wants to be with her.
Tigger finds himself falling in love with a French exchange student visiting the school.
Everybody gets ready for the school prom at the end of term. Tigger and Ed attempt find dates for the prom. Alex attempts to tell Sam how he really feels. A bomb which is still lethal is discovered in the sewers beneath the school.