NCIS: The Sixth Season finds the highly skilled NCIS team still under he able command of Special Agent Jethro Gibbs (Mark Harmon), an uncompromising leader who will see justice done - even if it means bending the rules. This season, Gibbs welcomes new members to the unit, while directing the veteran agents in their dangerous investigations outside the chain of Naval and Marine command. Co-starring Michael Weatherly, Pauley Perrette, David McCallum, Sean Murray, Cote de Pablo, and Rocky Carroll, the 6-disc set includes all 25 action-packed Season 6 episodes, along with high-caliber, behind-the-scenes special features.