Autumn of 2017. The Orchestre Métropolitain de Montréal begins its first international tour of Europe's most prestigious concert halls. This series of concerts is the crowning and paroxysm of the rich relationship between the musicians and their leader, Yannick Nézet-Séguin. Over four seasons, Jean-Nicolas Orhon's camera follows the preparation of this international adventure and gently penetrates the daily life of the orchestra. ENSEMBLE reveals the precious role of the maestro, exposes the excitement behind the scenes, displays the intimacy of the musicians and poses a new and delicate look on those whose life sublimes the love of music.