There are more than 300 'registered' superheroes in the United States, showcased in the doc through candid interviews, patrol footage, archival material and motion graphics.
Along with spotlights on San Diego's 'Mr. Xtreme' and members of Brooklyn's 'New York Initiative' (N.Y.I.), "Superheroes" also incudes interviews with Marvel Comics creator Stan Lee, Lt. Andrea Brown, a 24-year veteran of the San Diego Police Department and clinical psychologist Robin Rosenberg, an expert on the working minds of superheroes, both real-life and fictional.