: Joining initially to investigate the team’s integrity, Gregorio (Vanessa Ferlito) eventually transitions from a "by-the-book" FBI outsider to a core member of the NOLA unit.

The team partners with federal agencies to stop a sniper during a busy NOLA festival weekend. " One Good Man "

: Forensics specialist Sebastian Lund decides to pursue a more active role, undergoing training to become an official NCIS field agent.

: The season builds a long-term conflict between Special Agent Pride and Mayor Douglas Hamilton, focusing on the corrupt development of the Clearwater neighborhood. Notable Episodes 3x01 " Aftershocks "

: Christopher LaSalle deals with a major personal reveal when an old flame, Melody, introduces him to a young boy she claims is his son, Tucker.