with 122 episodes premiered on April 22, 2003

with 23 episodes premiered on September 23, 2003

with 23 episodes premiered on September 28, 2004

with 24 episodes premiered on September 20, 2005

with 24 episodes premiered on September 19, 2006

with 19 episodes premiered on September 25, 2007

with 25 episodes premiered on September 23, 2008

with 24 episodes premiered on September 22, 2009

with 24 episodes premiered on September 21, 2010

with 24 episodes premiered on September 19, 2011

with 24 episodes premiered on September 25, 2012

Despite a bomb attack on Gibbs and the team, duty continues to call for these special agents as they try to regroup and put the pieces back together.

with 24 episodes premiered on September 24, 2013

When Season 10 ended in the series' biggest cliffhanger, the NCIS was virtually disbanded and Gibbs was aiming a rifle at the FBI agent responsible.

with 24 episodes premiered on September 23, 2014

In Season 12, Gibbs and McGee travel to Russia to retrieve a computer expert and get into an ongoing battle with mercenary Sergei Mishnev.

with 24 episodes premiered on September 21, 2015

with 24 episodes premiered on September 20, 2016

Following the unexpected departure of a key member, the NCIS team regroups and recruits several new faces, including a former MI6 operative.

with 24 episodes premiered on September 26, 2017

with 24 episodes premiered on September 25, 2018

with 20 episodes premiered on September 24, 2019

with 16 episodes premiered on November 17, 2020

with 21 episodes premiered on September 20, 2021

with 22 episodes premiered on September 19, 2022

with 10 episodes premiered on February 11, 2024

with 20 episodes premiered on October 14, 2024

with 12 episodes premiered on October 14, 2025