Episode 414, "Checkmate" Thu, May 7, 9|8c AM
SEASON 3, EPISODE 306 - As Charlie digs deeper into the victim's life and discovers an elaborate gambling scheme, he realizes he has only uncovered part of the crime. Soon, he discovers a connection to a third party sending the case in a whole other direction. Aya Sumika ("The O.C.") begins her recurring role as agent Liz Warner, Don's former trainee.