Jeremy Luke

Brennan and Booth investigate the site of a train wreck where the bodies of a senator and a high-profile businessman are found within the wreckage. The businessman's body is found in a car on the train tracks, and at first glance, it is an apparent suicide. While investigating a possible connection between the two victims, Brennan and her team discover the businessman is still alive, but severely injured, at a local hospital, and the body at the scene is someone else. As the clues begin to unravel, the investigation gets more complicated when details of the man's private life are revealed, leading Brennan and Booth to a private detective who may hold key information. Meanwhile, Brennan is introduced to Dr. Camille Saroyan, a first-rate pathologist who has been hired as the head of forensics at the Jeffersonian, and more importantly, Brennan's boss. It doesn't take long for Brennan to figure out "Cam" is a little too familiar with Booth and that they share something of a past. Also, Booth encourages Brennan to visit her mother's gravesite for the first time.

Danny and Maria must track down an Army veteran who Danny thinks is suffering from PTSD. Meanwhile, Frank is caught off-guard during a press conference by a woman who is seeking justice for her murdered daughter. Karen Allen guest and Doug E. Doug guest star.

Susan, Lynette and Gaby blame Bree when Chuck starts to individually question them about Alejandro's disappearance.

When Danny is forced to remain completely still while bomb technicians disarm a bomb that he has accidentally activated, McGarrett distracts him by getting his partner to tell the story about his toughest and most emotional case from his days as a cop in New Jersey.

Murtaugh and Riggs investigate a death that occurs moments before the victim's bet wins a horse race. Leo Getz (returning guest star THOMAS LENNON) insists it's a homicide and aids in the investigation. Meanwhile, Murtaugh updates his will, while Riggs struggles to come to terms with his past.