Reeling from his father's murder, Parker goes to extreme lengths to hunt down the woman he holds responsible, mob boss Carla Marino, jeopardizing not only his own future but the team's.

When a petty officer's death is connected to a blackmail investigation, the team is forced to work with Special Agent Sawyer on the case, which takes a terrifying turn for Torres. Meanwhile, Knight is offered an opportunity to train with NCIS Elite.