L'ora della violenza

A group of Americans (a doctor and three marines) are in Manaus to bring medicines to Father Lepke's mission. Mister No is hired as a guide, since the mission is in an unknown part of the forest. But, unbeknownst to Jerry, someone is following the group... Don't trust your customers, Mister No! The Americans you guided are gangsters in the pay of the boss Machiavelli, who are looking for Brother Norton, once a criminal in the boss's service, to make him pay for his betrayal. And they raise hell in Father Lepke's mission!