All 24 episodes from the ninth season of the US crime drama following the exploits of the Naval Criminal Investigation Service, led by Special Agent Jethro Gibbs (Mark Harmon). In this season, Gibbs is introduced to a new love interest in the guise of Dr. Samantha Ryan (Jamie Lee Curtis) and the team find themselves under threat from a new type of terrorist looking to avenge the death of his son. The episodes are: 'Nature of the Beast', 'Restless', 'The Penelope Papers', 'Enemy On the Hill', 'Safe Harbor', 'Thirst', 'Devil's Triangle', 'Engaged: Part One', 'Engaged: Part Two', 'Sins of the Father', 'Newborn King', 'Housekeeping', 'A Desperate Man', 'Life Before His Eyes', 'Secrets', 'Psych Out', 'Need to Know', 'The Tell', 'The Good Son', 'The Missionary Position', 'Rekindled', 'Playing With Fire', 'Up in Smoke' and 'Till Death Do Us Part'.