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.
French student Cecile gives Tigger a new look, but a collision with a netball post gives him a weird nightmare where all his friends have colourful, and scary personae.
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.
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.
Mr McDonnell attempts to create more team work amongst the students with his Building Bridges project. With Lucy and Rachel arguing things dont go quite as planned.
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.
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.
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.