NCIS is an action drama about a team of special agents whose mission is to investigate any crime that has a shred of evidence connected to Navy and Marine Corps personnel, regardless of rank or position. Leading the NCIS team is Special Agent Leroy Jethro Gibbs, a highly skilled investigator and interrogator who is willing to bend the rules to get the job done. Working under Gibbs are Special Agent Anthony DiNozzo, a former detective with instincts that come only from working the streets; Agent Kate Todd, a tough former Secret Service agent; and forensics specialist Abby Sciuto, a scientist whose dark wit matches her Goth-style hair and clothes. New to the team is Special Agent Timothy McGee, a graduate of MIT whose computer skills earned him a probationary spot on Gibbs' team. Assisting them is medical examiner Dr. Donald "Ducky" Mallard, who knows it all because he's seen it all. NCIS's special blend of humor, drama, and action sets it apart, and the season finale packs a punch so surprising that only time will tell how the team will recover.