A man who believes he has put his mysterious past behind him cannot stand idly by when he meets a young girl under the control of ultra-violent Russian gangsters.
The eccentrically macabre family moves to a bland suburb where Wednesday Addams' friendship with the daughter of a hostile and conformist local reality show host exacerbates conflict between the families.
Following Kick-Ass' heroics, other citizens are inspired to become masked crusaders, but Red Mist leads his own group of evil super-villains to get revenge, kill Kick-Ass, and destroy everything he stands for.