Gibbs and McGee head to Alaska while the team works at home to uncover the conspiracy behind the serial killer.
Department of Justice agent Lance Hamilton asks Sam for assistance in locating a former U.S. Border Patrol tactical officer who disappeared following a threat by the cartel.
Veronica catches Tim Foyle breaking into Mars Investigations; Keith questions Mindy O'Dell and makes an arrest in her husband's death; Wallace notices Logan and Parker having lunch together.
When Jim tells Melinda that a corpse disappeared from the local morgue, they search for the body and an explanation.