To further his political ends and enrich himself, a political boss lets corruption run rampant in his city. A young couple set out to expose him.

In order to further his own political and financial aims, political boss William Randall allows corruption to flourish in his city. Minister Noel Delaney, however, declares war on the "system," aided by his college sweetheart, Mary. Flip, an underworld thug, lures Randall's daughter Betty into a notorious underworld resort, unaware of her identity. Through Mary, Delaney discovers Betty's whereabouts and rescues her. When Randall learns of the situation, he fights with Flip and is killed. With the population up in arms against the system, Delaney and Mary eventually work its downfall and clean up the city.—AFI