Knockout gas

Knockout gas is a type of chemical mixture, that when mixed as an aerosal, has the ability to render everyone within close proximity unconscious. This was a useful tool amongst various ne'er-do-wells in classic action TV programs. For example, henchman for the evil Doctor Solano once used knockout gas to incapacitate everybody's favorite 1970s fall guy, Steve Trevor in "The Return of Wonder Woman" episode of Wonder Woman.