Barney Ruditsky is a New York City police officer in the Roaring '20s who fights organized crime. The show was loosely based on the real life Rudisky who was a New York police officer during the period.
When a young hoodlum named Al Brown destroys a blind man's shop it puts Ruditsky on his trail. But it will be under another name in another city that Brown becomes notorious.
When the trail of a murdered garment factor owner leads back to the notorious Lepke Buchalter he sends the htman responsible, Big Greeny, to stay in Los Angeles under the auspices of the equally notorious Bugsy Siegal.
Ruditsky goes after Art Harris, a racketeer who's muscled his way into the political scene in order to protect his organized crime interests.
Mob boss Bobo Konig puts a bounty of $50,000 on psychotic gunman Billy Boy Creel who immediately goes underground. Ruditsky then tries to find Billy Boy before Konig's killers do.
Gangster Louis Otto was once a childhood friend of Ruditsky's. Now he's wanted for the murder of an underling.
A former union trucker who now owns a candy store is pressured by the Mob to leave New York City because he knows too much about their past labor racketeering activities. When he refuses to leave the city, the Mob bumps him off. The man's crippled son is the only witness to his father's killing.
Shortly after busting up a numbers racket, Ruditsky finds himself the target of a person or persons unknown.
The Mob kidnaps the son of a millionaire and holds him for a ransom of $100,000. Or did they?