A highly trained group of NCIS (Naval Criminal Investigative Service) personnel investigate all crimes with Navy or Marine Corps ties.

When a shocking tell-all threatens to ruin Christmas for a decorated Marine, NCIS must uncover the truth and deliver a holiday miracle - before the book hits shelves and turns a hero's legacy …

As NCIS investigates a dangerous connection between the Nexus cartel and Parker's longtime nemesis, mob boss Carla Marino, the team uncovers a high-stakes plot involving stolen …

NCIS teams up with the FBI and Homeland Security to pursue two escaped British prisoners, one of them a former spy, who have crossed international borders.

NCIS agents from Washington, D.C., L.A. and Hawai’i, all in D.C. to attend the retirement party of a beloved Federal Law Enforcement Training Center (FLETC) professor, find themselves …

NCIS investigates the unexpected death of a Navy reservist who was an investigative journalist; Knight and Jimmy's budding romance is put on hold when a vital organ transfer goes fatally …

The discovery of two dead bodies in a forest leads the NCIS team into the wild world of modern-day treasure hunting. Also, Gibbs and Fornell get deeper into their search for the opioid kingpin.

When the NCIS team engages in Walk-a-Mile day to gain a new perspectives on different departments, things take a turn when Kasie receives a distress call from a mysterious man.

NCIS: ORIGINS follows a young Leroy Jethro Gibbs (Austin Stowell) in 1991, years prior to the events of NCIS, and is narrated by Mark Harmon. In the series, Gibbs starts his career as a …

As NCIS mourns the loss of Ducky, the agents find comfort in working on one of his unfinished cases involving a woman whose father was dishonorably discharged from the Marines. Air …