All 24 episodes from the fourth season of the US action drama following the exploits of the Naval Criminal Investigation Service, led by Special Agent Jethro Gibbs (Mark Harmon). In this season, Sharif the terrorist makes an unexpected return, Ziva is framed for assassinating an Iranian prisoner, and a marine officer is killed by a bomb on a golf course. The episodes are: 'Shalom', 'Escaped', 'Singled Out', 'Faking It', 'Dead and Unburied', 'Witch Hunt', 'Sandblast', 'Once a Hero', 'Twisted Sister', 'Smoked', 'Driven', 'Suspicion', 'Sharif Returns', 'Blowback', 'Friends and Lovers', 'Dead Man Walking', 'Skeletons', 'Iceman', 'Grace Period', 'Cover Story', 'Brothers in Arms', 'In the Dark', 'Trojan Horse' and 'Angel of Death'. What's in the box 6 X DVD