Law & Order: Criminal Intent - Season 5 - Eps 4: Unchained
When a cop's son is murdered by the mob, Logan and Barek realise that young Joe Long was killed by mistake, and their investigation leads them to two rival mafia families, but it isn't long before Logan begins to believe that the true criminals aren't the mobsters, but the cops on their payroll. As their investigation narrows down to one main officer, Barek and Logan are faced with the difficult task of having to force the man's daughter to turn against him to get what they want. When the officer and his lawyer bring Logan's stormy history into play, even Deakins takes pause with his decision to have Logan on his force.
About Law & Order: Criminal Intent

Title: Law & Order: Criminal Intent
First Air Date: 2001-09-30
Last Air Date: 2011-06-26
Status: Ended
Rating: 7.571/10 (from 354 votes)
Language: EN
Seasons: 11
Total Episodes: 195
Network: NBC USA Network
Genres: Drama
Production Companies: Wolf Entertainment, Universal Television, Studios USA
Synopsis
The third installment of the “Law & Order” franchise takes viewers deep into the minds of its criminals while following the intense psychological approaches the Major Case Squad uses to solve its crimes.
Cast

Vincent D'Onofrio
Robert Goren

Kathryn Erbe
Alexandra Eames

Julia Ormond
Paula Gyson

Jay O. Sanders
Joseph Hannah