Constable Benton Fraser, an officer of the Royal Canadian Mounted Police, is attached to the Canadian consulate but works with Chicago Police Department to solve crimes.
Los Angeles police officers and detectives investigate crimes, navigate internal corruption, and burst into spontaneous, choreographed musical numbers.
A hapless young man living in New York City rallies to save his girlfriend's grandfather's horse-drawn trolley, the last in the city, from being put out of business by a railroad company.
Chicago cop Johnny Kelly, dissatisfied with his job and marriage, would like to run away with his stripper girlfriend Angel Face, but keeps getting cold feet. During one crowded night, Angel Face decides she's had enough vacillation, and crooked lawyer Biddel has an illegal mission for Johnny that could put him in a financial position to act. But other, conflicting schemes are also in progress...
Danforth is assigned to take over the police department in a section of a large city saddled with juvenile delinquency, petty crimes, graft and also a recent unsolved murder of a strip-tease dancer. Recognizing the laxity of the department he implements many changes and soon finds himself under fire by the newspapers, the attorney of a racket leader and the denizens of this human jungle.
A rookie New York cop has to deal with juvenile delinquents, his superiors, and blame for the suicide of a woman who jumped to her death while he was in her apartment.