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In this crime thriller series, a team of US Navy crime scene investigators uses their technical skills to identify and track down criminals. Led by a no-nonsense-tough-guy boss, the team is made up of lovably quirky characters with improbable skills.

Tuesday 8:00 PM et/pt on CBS
15 Seasons, 352 Episodes
September 23, 2003
Action & Adventure, Drama
7.9/10
Cast: Mark Harmon, David McCallum, Pauley Perrette, Sean Murray
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NCIS Full Episode Guide

  • Sloane is adamant that a man who held her hostage and tortured her years ago in Afghanistan, and was believed to have been killed following her rescue, is alive and in D.C., leading Vance and Gibbs to fear she is willing to risk everything to destroy this man.

  • While Gibbs attends the memorial service for a friend who was lost at sea, he discovers that the deceased, Navy Captain Phillip Brooks, has been hiding in a fallout shelter after his boat was attacked and he swam to shore.

  • When evidence reveals an NCIS team member is a hitman's latest target, the team must search through old case files to determine who is seeking vengeance.

  • Sara Carter begs Gibbs to investigate her mother's murder as she believes the local authorities convicted the wrong man. Also, Abby is awarded a dinner reservation for two to a brand-new five-star restaurant in an igloo and has to decide which coworker deserves to go with her.

  • NCIS searches for a petty officer suspected of assault who escapes when the sheriff transporting him crashes into a lake; Torres works closely with a blind witness who heard vital evidence needed to solve the case.

  • Gibbs is granted protective custody of a 10-year-old orphaned refugee, Elena, when an NCIS case reveals she is the target of a violent gang.

  • The NCIS headquarters are evacuated after the team discovers a body as well as bomb materials on the roof of the squad room. Also, the team reads the first draft of Ducky's book.

  • Gibbs and Ducky see an antique war stick on television that could be the missing murder weapon to a 16-year-old cold case.

  • Gibbs and the team work to clear the name of retired Marine Sergeant John Ross when cyanide is found in one of the hundreds of care packages he sends to active-duty Marines.

  • NCIS strikes a deal with convicted murderer Paul Triff, giving him a 48-hour furlough at his former residence, now McGee's home, in exchange for information that can convict his former cellmate, Gabriel Hicks, the murderer who deceived Gibbs and Fornell.

  • After the body of a missing Navy commander is found, Vance orders Gibbs and the team to work with former FBI Agent Tobias "T.C." Fornell, the private investigator who was hired to locate him. Also, Bishop and Torres interview convicted investment advisor Albert Hathaway when the victim is linked to his highly publicized trial.

  • After McGee and Torres visit the home of a high schooler who witnessed a hit and run, her parents, Christopher and Julie Bell, flee with their daughter, leaving NCIS in the lurch. Also, Vance's daughter is arrested for shoplifting.

  • After a seemingly happy and successful Navy Lieutenant appears to have taken her own life, Gibbs and the team conduct a thorough investigation, interviewing family and friends from her past and present.

  • As Torres and Sloane run protection detail for U.S. Senator John Phillips in Afghanistan for the holidays, they must urgently return to the states after hearing the senator's son is in the ICU. Also, Gibbs and the team investigate the altercation that caused the life threatening injuries to the senator's son.

  • The team's Thanksgiving plans are put on hold while they track an elusive international arms dealer in D.C. who recently murdered an MI6 officer who was Sloane's close friend. Also, Abby races Delilah (Margo Harshman) to the hospital when her labor starts three weeks early

  • An NCIS person of interest in a bribery and fraud case is found murdered after a runner is led to his body by a strange voice. Also, McGee and Delilah disagree on whether to find out the baby's sex or keep it a surprise.

  • After a convicted felon swears the NCIS agency framed him for murder a decade ago, Gibbs begins his own investigation, starting with a new autopsy by Ducky. Also, Senior FBI Agent Fornell joins the team, since he was the lead investigator in the original joint FBI and NCIS case.

  • After a petty officer is found murdered on a golf course, McGee spends hours on the victim's ham radio trying to locate a key witness. Also, Palmer asks his co-workers to donate to a charity that builds playgrounds for kids of all abilities, and Torres surprises them with his generosity.

  • After Reeves sees his friend get kidnapped, the NCIS team discovers the primary suspect disappeared two days ago with confidential military information. Also, an embarrassing photo from McGee's teenage years becomes a popular meme.

  • Director Vance welcomes NCIS Special Agent Jacqueline "Jack" Sloane, a forensic psychologist he lobbied to transfer from California, to headquarters. Also, in the midst of a storm that has shut down Washington, D.C. and knocked out power, the NCIS team investigates the kidnapping of a sailor, which sends Torres and Bishop out to sea to track evidence.

  • While on a stakeout with Metro P.D., Torres' partner mysteriously vanishes, with the subsequent investigation leading NCIS to uncover new evidence from a decade-old murder. Also, Ducky's friend, Cadence Darwin, presents him with a new opportunity during his guest lecture series.

  • NCIS is called in to investigate when the body of a missing Navy Lieutenant who disappeared a year and a half ago is located by a cemetery grounds crew while they are relocating caskets on the property. Also, Gibbs and McGee must pass a psych evaluation with Doctor Grace Confalone before officially resuming all work responsibilities.

  • Two months after Gibbs and McGee were last seen fighting an elusive group of rebels in a Paraguay jungle, the NCIS team in D.C. tirelessly searches for their missing colleagues. Also, Vance and Torres are summoned to a congressional hearing regarding the fallout from the Paraguay mission.

  • Gibbs, McGee and Torres travel to an area of Paraguay controlled by a group of violent rebels in an attempt to locate a missing Navy SEAL who disappeared during an unsanctioned trip.

  • The stress of McGee and Delilah's imminent wedding takes its toll, as Delilah is rushed to the hospital. Also, the NCIS team travels out to sea after a young and healthy Petty Officer aboard a Navy destroyer dies in his sleep.

  • After a Marine Sergeant is found murdered in a National Park, Gibbs and the NCIS team partner with Mounted Police Sergeant May Dawson to solve a string of related crimes in the park.

  • Torres must rely on the past after a Marine’s murder is linked to a former dirt bike gang he joined for a year-long undercover operation.

  • McGee and the team search for a hacker who infected a vice admiral’s laptop with ransomware. Also, Alex receives a “911” text from her mother.

  • The team must rely on a crotchety Vietnam War veteran to help in their investigation of the murder of a Marine who was killed at an event for the Honor Flight Network.

  • The team grants a sailor his dying wish when they re-investigate a murder case that was ruled accidental. Also, the situation hits close to home when it reminds Torres of a tragic time from his past.

  • McGee's apartment is ransacked by a robber searching for a valuable item hidden somewhere by the convicted criminal who previously owned the unit. Also, Congresswoman Flemming tries to persuade Director Vance to pursue a career in politics.

  • Bishop is on a quest for vengeance for the murder of Qasim, her late boyfriend, after Gibbs and the team find a new lead in the Chen case. Also, Torres teaches the agents the art of pickpocketing.

  • After Abby's homeland security think tank is jeopardized, she realizes she possesses a real bomb. The NCIS team discovers the leader of the group has been murdered and a theoretical terror playbook has been taken in this crossover episode with NCIS: New Orleans season 3 episode 14.

  • The murder of a Petty Officer in a small town outside D.C. prompts NCIS to once again work with "The Sherlocks," a privately funded investigative team that includes their newest member, Anthony DiNozzo, Sr.

  • While investigating a hit and run, Palmer discovers a man considering jumping off a ledge.

  • After Gibbs recognizes the brother of an "NCIS Most Wanted" suspect, he assumes his former alias and goes undercover with their infamous anti-government militia.

  • NCIS investigates after an undercover operation to apprehend a businessman who uses acts of terror to manipulate the stock market is exposed. Also, Bishop and Qasim make a discovery in the case together.

  • After the NCIS team connects the murder of a Navy captain to Ducky's deceased mother, Ducky reflects back and questions a pivotal life choice he made 37 years ago. Also, the team exchanges holiday gifts, and Gibbs spends Christmas dinner with Fornell.

  • The NCIS team investigates a series of intensifying threats against congresswoman Jenna Flemming, while Director Vance is in charge of temporary protection detail.

  • After NCIS Agent Bishop is sent to Gitmo to investigate the murder of a Navy chaplain, she questions her previous work at the NSA. Also, Bishop's brothers, John and Robert, visit for the Thanksgiving holiday and harass her co-workers to find out who she is dating.

  • Torres ignores protocol when he learns a witness in an NCIS case is wanted by U.S. Immigration and Customs Enforcement. Abby, Bishop and McGee hatch a plan to convince landlord Tony DiNozzo Sr. to sublet Tony's apartment.

  • After a kidnapped petty officer escapes her captor, NCIS investigates and makes a connection. Also, Abby knits the NCIS newbies personalized gifts.

  • When a missing MI6 Officer is linked to a murdered petty officer, Gibbs sends Quinn and Bishop to Philadelphia to work with MI6 Officer Clayton Reeves. Also, Quinn painfully recounts the NCIS case that made her leave field work.

  • Gibbs, Quinn and Palmer investigate the death of a navy lieutenant after the body is found on a destroyer during a tiger cruise, when civilian guests are allowed to spend the night on the ship.

  • The team investigates a marine sergeant’s tragic fall from a building. Meanwhile, Torres searches for a place to live.

  • The investigation of a death at a Quantico reunion reveals a bomb plot and a long-running theft ring. Also Torres and Quinn adjust to life on Gibbs’ team, including new seating arrangements in the squad room.

  • In the season opener, the NCIS team investigates a deadly car explosion in D.C. that has ties to NCIS Special Agent Nicholas "Nick" Torres, who disappeared 6 months earlier while working undercover.

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