A couple of geeky high-school boys are hanging out discussing their favorite comic-book superheroes. One of them wonders out loud why no one has actually ever tried being a superhero; think about it, he says, thousands of people want to be Paris Hilton but nobody wants to be Spider-Man. His friend replies, quite sensibly, “That’s because Spider-Man never made a porn video.” The question is debated for some time before judgment is made: “Dude, if anyone did it in real life, they’d get their ass kicked!”
One of the geek-boys, Dave Lizewski, secretly decides to give it a go anyway. After buying a form-fitting green and yellow skin-suit, he slips out at night to fight crime as masked superhero Kick- Ass, and — rather predictably — gets his ass kicked in the process. Apparently that radioactive spider bite is a big part of walking the walk after all.