NCIS, Naval Criminal Investigative Service. The fourth season
Donald P. Bellisario (Creator), Don McGill (Creator), Mark Harmon (Actor), Michael Weatherly (Actor), Cote de Pablo (Actor), Pauley Perrette (Actor), Sean Murray (Actor), Lauren Holly (Actor), Belisarius Productions, CBS Paramount Network Television (Firm)
Season four continues the adventures of a cutting-edge crew of special agents who operate outside the government's chain of command. Led by Leroy Jethro Gibbs, a former Marine whose skills as an investigator are unmatched, this highly trained, tight-knit team travels the world investigating murder, espionage, and terrorism