"Good Cop, Bad Cop" is the fourth episode of the seventh season of the American police procedural drama NCIS, and the 142nd episode overall. It originally aired on CBS in the United States on October 13, 2009. The episode is written by David North and Jesse Stern and directed by Leslie Libman, and was seen live by 21.04 million viewers."Good Cop, Bad Cop" is part of a major story arc surrounding Ziva's captivity and torture in Somalia, her rescue, and its aftermath.