NCIS

Gibbs fights for his life aboard a Navy hospital ship after being shot, while DiNozzo and Joanna Teague travel to Shanghai to try and take down the Calling. Jon Cryer begins a multi-episode arc as Gibbs' surgeon, Dr. Cyril Taft. Mimi Rogers returns as CIA Officer Joanna Teague.

Gibbs calls on the team to assist DEA Agent Luis Mitchell (John Gabriel) with a case that keeps going cold, but DiNozzo discovers there is more to Gibbs' personal connection to the agent and his desire to help him succeed.

After a Marine is found murdered in Quantico hours after calling Gibbs to discuss a possible case, Bishop and McGee go undercover as a married couple to run surveillance on a Marine Lieutenant and his wife.

Vance partners with Gibbs and returns to field duty when a murder case is connected to a former NCIS agent he locked up for stealing evidence.

While visiting a pharmaceutical lab on a murder case, Abby is trapped with no communication to the outside world after armed men take over the building and hold everyone hostage. Tony Gonzalez guest stars.

When a petty officer's murder matches the M.O. of a local serial killer, the NCIS team must determine if this is the killer's latest victim or the work of a copycat. Rocky Carroll directs and Margo Harshman guest stars.

The NCIS murder case of a retired Navy Lieutenant Commander forces Ducky to reveal his participation in a secret society that solves cold cases. Jessica Walter and Richard Riehle guest star.

DiNozzo is reunited with his ex-girlfriend, Jeanne Benoit, when insurgents in Sudan attack a group of volunteer doctors, including her husband. Jon Cryer and Scottie Thompson return.

In order to clear his name, a petty officer volunteers to be court martialed if NCIS agrees to conduct its own investigation after his murder case is dismissed due to a mishandled warrant. Jamie Bamber returns.

In the hopes of sparing a family further tragedy, the Secretary of the Navy calls on NCIS to help a sailor battling leukemia locate a bone marrow transplant after his two Marine siblings are killed in the line of duty. Lindsay Wagner guest stars.

After Ducky is attacked by a man claiming to have information about his half-brother who died decades ago, the NCIS team searches for the perpetrator, as Ducky recalls the final emotional days he had with his sibling. Adam Campbell returns as "Young Ducky."

After the passengers and crew of a private plane traveling from New Orleans to Washington D.C. are lethally poisoned, all evidence points to the missing chef, Abby's brother, Luca (Tyler Ritter). (Part Two continues on NCIS: New Orleans: Season 2, Episode 12)

While investigating the murder of a seaman who was set to testify before a grand jury, the NCIS team uncovers the resurgence of an international human-trafficking ring. Directed by series regular Rocky Carroll.

When a deep sea diver is murdered on the job, his body and suspected co-workers must remain in a high-tech decompression chamber for four days, leaving the NCIS team to complete an unorthodox investigation from outside the tank. Maya Stojan guest stars as Meredith Ragen, a deep-sea diver.

When Secretary of the Navy Sarah Porter (Leslie Hope) learns her daughter has been kidnapped, the NCIS team partners with the FBI to track the case, determine a motive and bring her home. Joe Spano returns as Senior FBI Agent T.C. Fornell.

Doctor Cyril Taft (Jon Cryer) experiences the rush of an NCIS case after he is assigned surgical duty to Gibb's suspect and finds key evidence. Laura San Giacomo Guest Stars as Dr. Grace Confalone.

The NCIS agents' personal plans are interrupted when each of them catches errors in a seemingly cut-and-dried closed case.

​The NCIS team re-examines an ambush on a group of Special Ops snipers in Iraq after an American couple is attacked in the same area six months later on the 300th episode. Taye Diggs and Laura San Giacomo guest star. The episode features a special performance by the MusiCorps Band, part of a music rehabilitation program for wounded veterans.

The NCIS team must ascertain who is lying, the wife or the mistress, after the women accuse each other of murdering a Navy Public Affairs officer.

After Tony's identity is stolen by multiple perpetrators, the fake Special Agent DiNozzos begin blackmailing Senators.

Gibbs and Senior FBI Agent T.C. Fornell (Joe Spano) unite after two British prisoners, including a former spy, escape and arrive stateside via a shipping container.

When a 14-year-old foils a home invasion, Gibbs suspects the teenager is withholding pertinent details.

The NCIS team, alongside the FBI and MI6, continue an international manhunt for an escaped British spy who has left one colleague fighting for their life in ICU. Sarah Clarke and Duane Henry guest star.

NCIS, FBI and MI6 continue an international manhunt for an escaped British spy who is targeting current and former agents. Robert Wagner, Sarah Clarke, and Duane Henry guest star.