The story of the Cervi family. Rural farmers brought up to be idealogically opposed to fascism during the era of Mussolini's rule of Italy and World War 2.
Penniless Baron Tulicò, nicknamed Leopard, abandons his mistress, with whom he's had two sons, and marries a rich woman. The mistress tries to have her rights established with the help of her sons.
The two brothers Marcella and Mario live with other young people in a neighboring country from that of their parents. The arrival of a stranger ignites the contrast with the adult world in them.