Jeremy Brandt

The Behavioral Analysis Unit quickly determines that the person who kidnapped the daughter of a U.S. district attorney was actually after the victim's twin.

When an ambulance mysteriously explodes while transporting the remains of a Marine, Gibbs and the team find that identifying the remains is harder than they had expected.

Ryan takes an internship working for Sandy and Matt (recurring guest star JEFF HEPHNER) at the Newport Group, but he ends up working harder to save Matt's reputation. Determined to get accepted to Brown University, Summer and Seth do whatever it takes to stand out at Harbor School. Johnny (recurring guest star RYAN DONOWHO) finally tells Marissa how he really feels about her. After a stressful weekend, Ryan and Marissa cross paths and end up telling each other the truth about their time apart.