Wiseguy - Season 2 - Eps 18: The One that Got Away
Winston serves Vinnie with an order to vacate, which Vinnie counters with the vow that he's going to stay at Radiance for the duration of his contract, causing Winston to dig deeper into Vinnie's past. Winston orders Vinnie and Bobby to work in the mailroom. Bobby uncovers Vinnie's file, which was sent to Winston, and confronts Vinnie about being a cop. Winston is arrested when he agrees to buy the illegal tape of Eddie from Isaac. (source: http://www.plasticcow.com/wiseguy)
About Wiseguy

Title: Wiseguy
First Air Date: 1987-09-16
Last Air Date: 1990-12-22
Status: Ended
Rating: 6.5/10 (from 31 votes)
Language: EN
Seasons: 5
Total Episodes: 75
Network: CBS
Genres: Crime, Drama, Action & Adventure
Production Companies: Stephen J. Cannell Productions
Synopsis
Vinnie Terranova does time in a New Jersey penitentiary to set up his undercover role as an agent for the OCB (Organized Crime Bureau) of the United States. His roots in a traditional Italian city neighborhood form the underlying dramatic base throughout the series, bringing him into conflict with his conservative mother and other family members while acting undercover as syndicate enforcer.
Cast

Steven Bauer
Michael Santana

Jonathan Banks
Frank McPike

Jim Byrnes
Daniel Benjamin 'Lifeguard' Burroughs

Cecil Hoffman
Hillary Stein

Maximilian Schell
Amado Guzman