Sam volunteers.

As NCIS investigates the cause of death of a reservist Navy Seal surgeon, they’re forced to bring Vance’s daughter, Kayla, who recently trained with NCIS, to help with a highly dangerous mission.

As the train grapples with Layton's status, he's discovering that some dreams aren't worth having. Wilford makes a shocking discovery.

Clayton's former flames reunite to hash out their differences, clear up any misunderstandings and apologize -- or not -- for bad behavior; a few special surprises and bloopers.

In an effort to please Salen, Andrews takes on a high-profile case and assigns Shaun and Allen to help perform a risky surgery to restore the voice of a famous pop star.