CBS is a veritable "crime TV network", one crime drama after another, one derivative after another, which seems to have no end. If CBS's signature dish, crime scene investigation (CSI), can lead to "New York" and "Miami", why can't CBS's other signature dish, "Naval Criminal investigation Office" (NCIS), derive something? Well, here comes "Naval Criminal investigation: Los Angeles". Anyone who likes "NCIS" is no stranger to "Los Angeles"-the first two episodes of the show (named "Legend") have been plugged into the "NCIS" drama this season. "Los Angeles" mainly tells the story of OSP (Special programs Office, Office of Special Project), a branch of the Naval Criminal investigation Office that specializes in covert surveillance missions, fighting high-tech crime, arresting the most dangerous criminals and maintaining national security. The members of the team are trained elite agents who work secretly using cutting-edge technology and a variety of false identities. They hide so deep that sometimes their families don't know who they really are. For.