A team of special agents, operating outside the military chain of command, must investigate any crime with pieces of evidence connected to Navy and Marine Corps personnel, regardles of rank or position.

Title from container. Originally broadcast on CBS television during the 2003-2004 season. Special features: Commentary by co-creator/executive producer/writer/director Donald P. Bellesario on episode 1 "Yankee white"; "N.C.I.S.: creating season 1" featurette; "N.C.I.S.: building the team" featurette; "N.C.I.S.: defining the look" featurette.

Episode 9: Marine down -- Episode 10: Left for dead -- Episode 11: Eye spy -- Episode 12: My other left foot -- Episode 13: One shot, one kill -- Episode 14: The good samaritan -- Episode 15: Enigma -- Episode 16: Bête noire.