S01E13 - Fascination for the Flame
Synopsis
Convinced an associate's bride-to-be is a Fed, Mel insists he postpone the wedding. Insulted, Paco brings up a death squad to hit Mel, then arranges to kidnap Susan to force Mel to give him all of their drug action. Vinnie and Roger rescue Susan. Frank finds out Paco's bride was an undercover CIA agent. (source: http://www.plasticcow.com/wiseguy)