It shows that dreams can come true despite the difficulties of making symphonic music in Peru. A group of children and young musicians from the provinces manage to perform in an important concert at the Cathedral of Lima. This documentary shows the search for a dream by a group of children and adolescents who participate in the National Children's and Youth Symphony Orchestra of Peru. Previous moments of the disciplined rehearsals are part of the tireless musical work together with the Director of the Orchestra. Between woods, brass and percussion they will achieve a presentation full of impetus, youth and brilliance.