Booster maps the lives of a group of young people who amuse themselves in the squares of the suburbs and show off their souped-up mopeds. Behind their quasi-indifferent façade, they struggle with teenage problems: first love, status within the group, and the vague realization that there must be more to life than this. In Booster BMX rider Brent fights his own little war with street racer Jimmy. The stakes of the battle: the love of 'the girl', but also quiet ambitions and hidden pains.