"Kick-Ass" is a comic book series and film that follows the story of a regular teenager named Dave Lizewski. Inspired by comic book heroes, he decides to become a real-life superhero, despite having no special powers or training. His journey leads him to face dangerous criminals and unexpected challenges, all while trying to navigate the complexities of teenage life. As Dave embraces his alter ego, he encounters other unique characters like Hit-Girl and Big Daddy, who are skilled fighters with their own vendetta against crime. Together, they take on a powerful mobster, showcasing the blend of humor, action, and the consequences of vigilantism in a world where heroes are not always what they seem.