this be an amazing tv series focus on the investigation team of ncis who investigate a number of thing include brutal murder and terrorist threat and kidnaps and other thing happen inside the navy while develop a close friendship . it star mark harmon a the head of the team special agent leroy jethero gibbs . he come across well a the head of the team . the rest of the team consist of david mccallum a dr donald ducky mallard gibbs best friend and the team medical examiner who be both wise and a little eccentric and michael weatherly a agent tony dinozzo gibbs second in command who have a fantastic sense of humour and who can not help tease kate and sasha alexander a agent kate todd formally a secret service agent assign to the presidential protection detail she may be new but she soon learn the rope and what tragically happen to her in the episode twilight leave the team heartbroken and sean murray a agent timothy mgee tony apprentice who be only be an ncis agent for a couple of year but soon become a valued member of the team and cote depablo a mossad officer ziva who replace kate she a very strong character who have some very funny line and pauley perrette a forensic officer abby sciuto a goth with a great sense of humour who be a vital team member and lauren holly a director jenny shepard a former girlfriend of gibbs . my favourite character be dr donald ducky mallard he have the best line in the series . this be very good with interesting story and character and great action scene well worth watch on tv or renting or buying .