Two small-time criminals, Libano and Freddo, team up to kidnap a wealthy baron. With the ransom money, the leaders of the two gangs plan a partnership that will conquer Rome: the Gang is born.

Mysterious emissaries contact Lebanon to find Aldo Moro; Freddo, opposed to political interference, distances himself. Meanwhile, Terrible provides Scialoja with evidence to frame the Gang.

Libano and the others, all in prison, wonder who could have betrayed them. The answer is simple: there can only be one man behind the unscrupulous Scialoja's move. But their hegemony continues even from behind bars.