Jackson Katz walks through decades of film clips, news footage, and advertising to ask why men and boys commit the overwhelming majority of violent crime in America. He traces a version of masculinity built on dominance and toughness back through action movies, professional wrestling, gangsta rap videos, and school shooting coverage, arguing that pop culture teaches boys a narrow script for manhood and then punishes them for following it. Interviews with students, media scholars, and activists sit alongside clips of Sylvester Stallone, Arnold Schwarzenegger, and other action stars whose on-screen personas Katz reads as symptoms rather than causes. He also looks at how news coverage of mass shootings and gang violence tends to describe perpetrators by race or class while leaving gender unmentioned, even though nearly all the shooters are male. The film moves from the schoolyard to the boardroom to the battlefield, tracking the same pressures across contexts. It stays focused on one question throughout: what happens to boys who are taught that vulnerability is weakness and violence is proof of manhood.