In this episode of Without a Trace, the following happens. The team investigate the disappearance of a man named Rob. He disappeared after a funeral for a man who worked for his company. They soon learn that Rob took a flight to Los Angles, under a different name. Due to this Jack asks Samantha to go to with him to Los Angeles. After a bit of a chat (about how it will look to everyone), she agrees. They go to see Rob's sister and father, both of them had no idea that he was back in town. Jack and Sam son learn from a homeless man, that Rob was forced by gun point into a car and was driven off. They soon believe that a double murder over 15 years ago may be related to why Rob has gone back to Los Angeles. The team soon believe after talking again to Rob's sister, that their father may have been involved in the double murder. When Jack and Sam pick up the father he confesses to the murder. But when Sam talks to his friend, Ed he admits that it was Rob who killed both of them. Rob was high on drugs that night and had no idea that he had killed anyone. He flipped out, took the gun and took off. Neither of them have heard from him since, and they have been looking for him. Its then that Jack and Sam gets a call and head to the beach and find a suicide note inside of a pair of shoes. It seems as though Rob, drowned himself, after not being able to live with himself after learning that he committed a double murder. At the very end of the episode, we see that Jack and Sam are now back together and that Jacks daughter Hannah is coming back home, to New York for a few weeks.