The NCIS team tracks a Navy lieutenant's killer after a Pentagon security camera reveals a petty officer committing the crime. Meanwhile, Gibbs announces that Agent Barrett and her team will take over the Port-to-Port serial killer case.
After a rocket engine expert is killed, NCIS tech operator Eric Beale goes undercover for the first time to ensure that the classified technology used to build satellites is safe.
Amber quits her job and begins to fall down a dangerous and destructive path. Crosby works with Joel to mend his relationship with Jasmine. Meanwhile, Kristina and Adam overhear a disturbing phone call, which strains their relationship with Haddie. Elsewhere, Sarah makes progress with her stage play with the help of Zeek's, old friend Gilliam T. Blount.
The players go to New Zealand, where they face a series of challenges including climbing 51 flights of stairs, sky jumping and completing a 5K. Elsewhere, the group receive tips on eating well during a visit to a fish market and later sail around Auckland Harbor.
The firm represents a small drilling contractor in a dispute against a major oil conglomerate which is going well until a South American dictator takes over the case. The election results are in.