A tough cop meets his match when he has to guard a gangster's widow on a tense train ride.

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.