Wiseguy - Season 2 - Eps 3: Revenge of the Mud People
Unbeknownst to Vinnie, his car was used in the robbery where an off-duty cop was killed, leading to his arrest and brutalization at the hands of the NYPD. Frank bails him out, then reluctantly lets Vinnie continue his pursuit of Knox Pooley. Vinnie tells Ritchie he's a cop and asks him to help him gather evidence against the Pilgrims. Vinnie goes to a Pilgrim rally and stumbles across the truck that was used to kill Pete, then agrees to a meet with Stan in the hopes of tying Pooley to it, leading to Stan and Ritchie's arrests. (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