Concert film documenting the foundational stage of the Argentine 'rock nacional' movement. It was filmed during the third edition of the historic B.A. Rock rock festival, which took place in 1972 at the Argentinos Juniors stadium.
Overview：Concert film documenting the foundational stage of the Argentine 'rock nacional' movement. It was filmed during the third edition of the historic B.A. Rock rock festival, which took place in 1972 at the Argentinos Juniors stadium.
