While Neal and Mozzie search for a piece of the Manhattan skyline that matches Ellen's key, Peter is content to stay one step behind and monitor Neal's movements. But he won't be able to sit on the sidelines for long: Mozzie, a newly minted New York taxi owner, has spotted another cabby operating under his medallion number and he wants justice. Looks like Mozzie has brought Peter a legitimate case.

Delving into the world of the New York livery service, their investigation soon leads Peter and Neal to an iconic New York jazz club being given a second lease on life by two brothers, one a convicted criminal and the other an employee for the Taxi & Limousine commission. Suspicious that the club may be a front for a crime family, Peter sends Diana undercover as a cigar girl. What she finds is a man fresh out of jail and so eager to make up for lost time that he can't see that his only remaining family has turned a cherished piece of their past into a full fledged criminal enterprise. The question is, can the team convince brother to turn against brother, or will the strength of family ties force them to send an innocent man to jail?