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Season 17
20 episodes
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E01
Ziva surprises Gibbs with a cryptic warning, prompting him to question why she remained underground for years while being presumed dead by family and friends, and what led to her return.
E02
With their lives in danger, Gibbs and Ziva's rogue investigation takes an unexpected turn when a possible terrorist plot is revealed.
E03
After the body of a Marine Lieutenant is found hidden under an 18-wheeler, the NCIS team tracks the vehicle's previous locations to pinpoint the crime scene and suspect. Also, Sloane encourages the team to sit down and talk about Ziva's recent reappearance.
E04
The NCIS team links a bizarre crime scene at Arlington National Cemetery to a string of attacks on homeless veterans. Also, Vance orders McGee, Bishop and Torres to complete hours of evidence garage cleanup duty for withholding information.
E05
NCIS investigates Marine Corporal Laney Alimonte after evidence suggests she murdered her neighbor while being treated for insomnia by a hypnotherapist. Also, Gibbs befriends his new neighbors after the 9-year-old's baseball crashes through his window.
E06
After a petty officer's son is found murdered at his "welcome home from prison" party, evidence suggests Kasie's lifelong best friend, Dante Brown, is the suspect.
E07
While investigating a Marine's murder, the NCIS team uncovers a labyrinth of live-streaming spy cameras hidden in the rooms of a Virginia motel.
E08
The NCIS team investigates the murder of a musician in the Navy's most elite band that performs at diplomatic events around the world.
E09
The NCIS team investigates a petty officer's murder that was live-streamed on a popular gaming app. Also, Gibbs watches his 11-year-old neighbor, Phineas, when his mom must leave on a last-minute trip.
E10
Gibbs and the team assist Ziva with "the one thing" she said she would need to take care of before returning to her family.
E11
Gibbs must face the reality of his actions after he assists Ziva with "the one thing" she said she would need to take care of before returning to her family.
E12
The NCIS team investigates an F-18 crash and the subsequent disappearance of the pilot who operated the aircraft. Also, McGee reluctantly discusses a very personal decision with his teammates.
E13
After a body is found at an unmanned aerial vehicle testing site, the NCIS team must determine if the death was murder or an accident. Also, Palmer carefully interviews medical examiner assistant candidates.
E14
After Torres and Bishop are victims of a hit-and-run, Torres fights for his life in the ICU.
E15
The lead suspect in an NCIS murder investigation is a woman Gibbs' friend, Phillip Brooks, met on a dating site. Also, Sloane has a secret admirer on Valentine's Day.
E16
While investigating the suicide of a retired Navy officer who left a rare, valuable – and possibly stolen – coin to the National Museum of the Navy, the team imagines themselves in his life story in order to piece together how the coin ended up in his possession.
E17
As the NCIS team investigates the death of a Navy officer murdered the same way as his parents a decade ago, they stumble across a storage container filled with dollhouses that display recreations of murder scenes. Also, the team agrees to clean out their living spaces, but some have a harder time saying goodbye to their possessions than others.
E18
The team searches for answers when the body of a well-regarded Navy technician in the Reserves is found floating in a lake where a popular community event is being held. Also, Sloane is caught off-guard when her daughter, Faith, makes an unexpected request.
E19
When Kasie and Jimmy are held hostage in a diner after a jewelry store robbery goes awry, they attempt to keep the other customers safe from the thieves.
E20
The team tries to verify the identity of Joe Smith, who claims he served on the U.S.S. Arizona during the attack on Pearl Harbor, and wants to be buried there upon his death.