Defendor (2009)

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