The sport of boxing is rife with corruption and it takes a courageous person to demand fairness. When a clean manager is murdered Dawson is determined to find his murderers and destroy the syndicate organizing fights.
A murderous maniac has already killed six prominent citizens and promises more victims. Col. Dawson is determined to find him and suspects a newspaper editor is withholding information about the criminal.
A self proclaimed spiritualist Ella Simpson vows vengeance after her execution. Dawson takes on the baffling case when the jurors on her case start dying. The police officer must discover the answer before the next death occurs.
To discredit Dawson, crime big shots conspire to throw a group of poor families out of a tenement house slated for demolition, knowing they have no where to go, and will instead mount a violent defense of their home. Shooters are planted among the people to provoke a shootout with the cops.
After an undercover cop working for Dawson is murdered, a tape recorder he was carrying reveals the killer. He in turn is killed by order of his boss, a kingpin in a gambling ring. Dawson tails other members of the gang, but they are able to confound the police with duplicate cars-for a while.