The documentary focuses on the impressive event of the Italian youth world organized at Parco Lambro in Milan in 1976. The gathering, four days dedicated to counterculture and pop music, was attended by students, young people, workers, lumpenproletarians, feminists, gays and young people from extra-parliamentary groups. The memories and testimonies of those who organized, sang or simply participated will be a commentary on the splendid images of the time. For the first time, meaning is given to the exclusive and complete material shot by Alberto Grifi and six other operators at Parco Lambro in 1976.

Between June 26 and 29, 1976, the sixth edition of the Festival of the Juvenile Proletariat took place at Parco Lambro in Milan, an event conceived by the countercultural magazine Re Nudo. The organizers invited Alberto Grifi to film those days filled with meetings, debates, and concerts, but not everything went as planned. This is the 58-minute version (from 27 hours of footage) edited by Grifi himself after the event.