In Brazil, Dr. Ann Philips tries to inoculate the superstitious natives against an epidemic. The murderous Jaguar Men oppose the intrusion. The natives take heart when the riverboat captain'... Read allIn Brazil, Dr. Ann Philips tries to inoculate the superstitious natives against an epidemic. The murderous Jaguar Men oppose the intrusion. The natives take heart when the riverboat captain's helper Pepe volunteers for the first shot.In Brazil, Dr. Ann Philips tries to inoculate the superstitious natives against an epidemic. The murderous Jaguar Men oppose the intrusion. The natives take heart when the riverboat captain's helper Pepe volunteers for the first shot.