In the episode The Cost of a Vacation it is revealed that Mannix worked as a mercenary in Latin America. Joe Mannix is notable for taking a lot of physical punishment. During the course of the series he is shot and wounded (over a dozen separate times) or is knocked unconscious (around...
Episode Guide Season 1 Ep 1: The Name Is Mannix Mannix is hired by former crime boss Sam Dubrio when his daughter is kidnapped. His plan is to set up a ransom and then pay off the pickup man to turn in his boss. Remind Me Ep 3: Skid Marks on a Dry Run People begin to be...