« I can't be invisible. But I can kick your ass. »
The plot of Kick-Ass concerns a teenage boy, Dave Lizewski, who decides to become a real-life superhero after being inspired by the heroes of comic books. He soon encounters a mysterious vigilante called Big Daddy, and his daughter Hit-Girl, who are working to bring down the local drug baron Frank D'Amico. He also meets another vigilante, Red Mist, who has been inspired by Kick-Ass'.