The team must take a second look into the death of a lieutenant after the blogger who accused them of a cover-up ends up dead.

The NCIS team searches for the person and motive behind a contract killer targeting a Navy Lieutenant Commander.

Meanwhile, Abby uncovers new information about her family after undergoing tests for a kidney donation.

Torres' partner mysteriously vanishes during a stakeout with Metro P.D. The investigation uncovers new evidence from a decade-old murder case. Meanwhile, Ducky's friend, Cadence Darwin, presents him with a new opportunity during his guest lecture series.