Ex-punk rocker, turned commentator, Henry Rollins has struggled with feelings of aggression his whole life. Hes on a mission to find out if his rage is the product of his upbringing or if its in his genes. Henry recruits a colorful cast of characters in his quest for the truth: Outlaw bikers, mixed martial arts fighters, Buddhist monks, gang-bangers and the most aggressive NFL linebacker of them all, Dick Butkus. A DNA test reveals which of them carries the Warrior Gene and the results provide an extraordinary insight into the human psyche. This gripping human journey seeks to answer some of mans oldest questions like who are we and who controls our destiny?