Quiet, cautious Pearl has always adored her bold, brash, bad big sister Jodie. W
hen their parents get new jobs at a grand, fusty old boarding school, Melchester
College, the girls have to move there - and when they arrive, things start to c
hange. Jodie has always been the leader - but now it's Pearl who's making new fr
iends. Jodie just seems to be getting into more and more trouble - arguing with
Mum, scaring the little children, flirting with the gardener. She really doesn't
fit in with the posh teenagers at the school. Pearl begins to wonder if she nee
ds Jodie as much as she used to. But when Firework Night comes around and a trag
ic event occurs, Pearl realises quite how much Jodie means to her.