By day, Arthur Poppington directs traffic around road construction sites, but at night he dons a pair of black tights, a black jersey with a crude "D" duct-taped to his chest, and trawls the streets as his alter ego. As Defendor, Poppington engages in what he believes is a super heroic fight against crime in an attempt to fulfill his unrealized dream of capturing his archrival, Captain Industry -- a gun trafficking crime lord who Poppington mistakenly believes is responsible for the death of his mother. When coming to the aid of an underage prostitute, Defendor tangles with her pimp, a crooked undercover cop. By doing so, Defendor bumbles his way into a criminal underworld, and the stage is set for a showdown with Captain Industry.