This powerful series is about a team of special agents, operating outside the military chain of command, whose mission is to investigate any crime that has a shred of evidence connected to the Navy and Marine Corps personnel, regardless of rank or position. Leading this team is NCIS Special Agent Leroy Jethro Gibbs (Mark Harmon), a highly skilled investigator and interrogator who is smart, tough and willing to bend the rules just to get the job done.