As super villain Mistress Moth, Mona Saint is a disaster. Defeated and humiliated by LA super-team the Superior VII, she spends six years behind bars. Vowing revenge on the superhero community that has belittled and imprisoned her, she comes up with a scheme to get back at them and make herself staggeringly rich in the process.

Upon her release, she founds Saint Inc., a company who’s USP is that it murders superheroes for cash. Steering clear of big metropolises such as New York and Los Angeles, Saint’s vicious band of Hero Killers (Rottweiler, Black Laser, Psilence and Sure Shot) eliminate super-powered crime fighters all over the United States. Staying off the radar of big city super teams, Saint Inc. prospers. Then Seymour Nietzsche comes into her life.

The head of America’s largest independent oil company, Nietzsche offers Saint $100 million to assassinate Bronze Eagle – the most loved and respected superhero in the entire country. Keen to inflict one last massive black eye on America’s superhero community before retiring, Saint accepts Nietzsche’s offer. This is her second mistake.