NCIS: Los Angeles is a drama about the high stakes world of undercover surveillance at the Office of Special Projects (OSP), a division of NCIS that is charged with apprehending dangerous and elusive criminals that pose a threat to the nation's security, specifically Naval and Marine assets and personnel.
The team heads to LA to work with the team there to investigate a murder, which soon turns into something bigger. Tony begins snooping into Ziva's private life. (NCIS S06E22)
In Los Angeles, Gibbs and McGee continue working with the NCIS division in order to track a terrorist cell. Agent Callen goes undercover. A psychologist uncovers the truth about the relationship between Gibbs and Agent Macy. Tony fears that Ziva may not be loyal to NCIS. (Originally aired as NCIS s06e23)
Hawaii Five-0 and the NCIS: Los Angeles task force team up in Hawaii when there’s a suspect on the loose who is threatening to release a deadly virus into the population. Series crossover: Hawaii Five-0 S02E21 (Part 1) and NCIS: Los Angeles S03E21 (Part 2).