When their father dies, three nomadic sons choose different voices. The first part for the city, the second tries to live as its ancestors develop and the third integrates one of the new agricultural cooperations. "A pastoral society (1,500,000 inhabitants) on the threshold of decisive choices, destructured by the evolution of economic relations which lead to the concentration of herds in the hands of a few, to the support of rangelands and to the movement of impoverishment and proletarianizatio...