Grands travaux is situated at the Institute Anneessens-Funck, a Dutch-speaking vocational school in the centre of Brussels where young students have come to learn an occupation. The film documents and stages that which gives shape to their lives: the practical assignments and classes at school, football, the ups and downs of their love lives, as well as the ongoing search for housing and employment. Depicting the daily life within the school walls, Grands travaux also aims at sketching an image of Brussels today, placing its youngsters at the very centre.