In Mexico, the fight between good and evil has been waged every week for decades, thrilling generations of fans with the spectacle of Lucha Libre. Real-life superheroes and villains, these masked wrestlers put their lives on the line night after night to entertain the legions of fans. Utilizing remarkable access to all the major Lucha promotions, this documentary offers a no holds barred look at some of the sport's top performers, featuring the "1000% Guapo" Shocker, Luchador heir Blue Demon Jr, the tragic hardcore wrestler El Hijo Del Perro Aguayo, and extreme American bodybuilder Jon "Strongman" Andersen, going behind the mask, on a journey into the heart of Mexico.