New York sportswriter Mack has spent years devising successful hook-up "plays" with her friends, but when she unexpectedly falls for one of her targets, she must learn what it takes to go from simply scoring to playing for keeps.
After Kick-Ass’ insane bravery inspires a new wave of self-made masked crusaders, he joins a patrol led by the Colonel Stars and Stripes. When these amateur superheroes are hunted down by Red Mist — reborn as The Mother Fucker — only the blade-wielding Hit-Girl can prevent their annihilation.