It's the early 90s and the first day of a new school term and a terrible start for 16-year-old Erin as she wakes up to find her cousin Orla reading her diary. Not so great for everyone else either as Granda Joe announces there's a bomb on the bridge. The Quinn family are distraught - it's a huge inconvenience and Aunt Sarah may not even be able to get to her sunbed session. Erin and Orla head to school picking up their friends Clare, who's doing a sponsored fast for Ethiopia, and Michelle, who has her cousin James in tow. James is over from England and will be joining them at Our Lady Immaculate Girls School amid concerns he'd get beaten up at the boys' school 'because of the English thing...'.