Chris Noth by Eric Liebowitz/USA Network Chris Noth by Eric Liebowitz/USA Network
Chris Noth will clock out from his role as

Law & Order: Criminal Intent's (Sundays, 9pm/ET, USA) hotheaded detective Mike Logan this week, after nearly two decades. Logan's swan song begins when he gets involved in a case about a guy who's doing hard time for a crime he didn't commit. To exonerate him, Logan must go up against a very ambitious district attorney, played by

24 vet Leslie Hope. Executive producer Warren Leight, who's also leaving L&O: CI soon to run HBO's In Treatment, says: "Everyone tells Logan it's stupid to pick a fight with her." Naturally, he does. "It's a very personal episode for Logan.At times, it's Logan against the world." Will this cop who's seen it all get a happy ending? Says Leight, "I'd say the happiest ending is to go out swinging." - Megan Walsh-Boyle