Wiseguy - Season 2 - Eps 19: Living and Dying in 4/4 Time
Just as Frank's suspected, the case against Winston is thrown out of court as entrapment, pushing the investigation back to square one. Vinnie urges Bobby to start working away at Winston from inside Radiance by contacting all of the acts and showing them how badly Winston has been ripping them off. Isaac suffers a massive heart attack and later dies. Winston goes mad. Bobby gets Dead Dog. Amber gets Shakala back. (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