S6 E4: After two Marines are ambushed, the NCIS team finds the investigation leads back to Gibbs' hometown, where secrets about his past are revealed. (
NCIS (Naval Criminal Investigative Service) is more than just an action drama. With liberal doses of humor, it’s a show that focuses on the sometimes complex and always amusing dynamics of a team forced to work together in high-stress situations. From murder and espionage to terrorism and stolen submarines, these special agents investigate all crimes with Navy or Marine Corps ties.