In Catalonia there is an old tradition: Castells, the formation of human pyramids. The Filmmakers spent one season with the team "Colla Joves" from Valls. Driven by the rivalry to the other group of the town, the "Colla Vella", they strive for a victory at the final derby. But their high hopes seem to be endangered by a terrified five year old child, the top of the pyramid...