The powerful superhero John Hancock has become a joke because of his alcoholism and clumsiness. He has also become the most hated man in Los Angeles. Though he has saved many lives, he also destroyed a lot of property, costing the city millions every time he goes into action. When he saves the life of PR expert Ray Embrey from an oncoming train, the executive is thankful and believes he can restore Hancock's image as a true superhero. He brings the anti-hero home for dinner and introduces him to...

A crooked cop, a mob boss and the young girl they abuse are the denizens of a city's criminal underworld. It's a world that ordinary Arthur Poppington doesn't understand and doesn't belong in, but is committed to fighting when he changes into a vigilante super-hero of his own making, Defendor. With no power other than courage Defendor takes to the streets to protect the city's innocents.