破案剧集《海军犯罪调查处 NCIS》衍生剧《洛杉矶海军犯罪调查 NCIS: Los Angeles》由ChrisO’Donnell和LL Cool J出演，主角是专注于高风险的卧底及侦察任务的出奇小组Office of SpecialProje cts(OSP)，它们将专门负责危及到社稷安全的高危险案犯。拥有各种高尖端科技以及各种不一样身份的受过特别训练的小组成员，将冒死执行卧底任务以完成它们的目标。 特务G Callen拥有变色龙普通的转换身份技法，可以让自个儿融入各种地下案犯世界。他的搭档特务Sam Hanna，前海豹突击队成员，曾在阿富汗和伊拉克执行过任务，拥有颀长的监视技法，曾经为前线士兵提供过监视数据。 辅佐这只团队的还有特务Kensi，性情豁朗活泼出身武人世家，心理学家Nate Getz，拿手钻进任何人的脑袋里，剖析目标以及评估特务们的面貌。 这支队伍已在NCIS第六季季末登场，高端的设施，怯场的案情无不吸引着看客的视线。随着Linda Hunt等老牌实力演员的介入，OSP的队伍也逐渐壮大起来。人见人爱的Abby和NCIS主子Leon Vance也将在衍生剧中助阵。

 Zasha the Russian operative , whom they turned into an asset is captur3d by Joelle. They deduce she's looking for Katya. They know that Zasha can't help her but Joelle might not care. So Callen tries to contact her to get her to come and give Zasha back. But she refuses so Callen resorts to some5hing heavy handed. She doesn't take it well. It isn't long till Russian ops come down on them and Kilbride orders them to use no lethal force. Kensi and Deeks look into options in regards to their family. Callen discovers something that threatens to change his relationship with Hetty. Hetty is going somewhere again.