The team goes to investigate the suspicious death of a man who works for a company that occasionally works for the Pentagon. Jane thinks the man suspected that someone at the company was passing secrets. So they set a trap and find the middle man. They need to make the person they are looking for feel safe so they arrest the man's brother for his murder. Lisbon is approached by Ardiles, the prosecutor she worked with at the CBI. And he says he thinks someone is following him. Lisbon thinks he's paranoid.